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Stereoselective reaction of alpha-sulfinyl carbanion derived from chiral 2-(Trialkylsilyl)ethyl sulfoxides: evidence for a novel silicon-oxygen interaction.

The Journal of organic chemistry

Nakamura S, Takemoto H, Ueno Y, Toru T, Kakumoto T, Hagiwara T.
PMID: 10813959
J Org Chem. 2000 Jan 28;65(2):469-74. doi: 10.1021/jo9913560.

Reactions of alpha-sulfinyl carbanions, derived from p-tolyl sulfoxides bearing various alkyl groups, with various electrophiles were examined. The reaction of alpha-sulfinyl carbanions, derived from the beta-silylethyl sulfoxides, with ketones or trimethyl phosphate, gave the syn products with high stereoselectivity....

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Nakamura S, Takemoto H, Ueno Y, et al. Stereoselective reaction of alpha-sulfinyl carbanion derived from chiral 2-(Trialkylsilyl)ethyl sulfoxides: evidence for a novel silicon-oxygen interaction. J Org Chem. 2000;65(2):469-74doi: 10.1021/jo9913560.
Nakamura, S., Takemoto, H., Ueno, Y., Toru, T., Kakumoto, T., & Hagiwara, T. (2000). Stereoselective reaction of alpha-sulfinyl carbanion derived from chiral 2-(Trialkylsilyl)ethyl sulfoxides: evidence for a novel silicon-oxygen interaction. The Journal of organic chemistry, 65(2), 469-74. https://doi.org/10.1021/jo9913560
Nakamura, et al. "Stereoselective reaction of alpha-sulfinyl carbanion derived from chiral 2-(Trialkylsilyl)ethyl sulfoxides: evidence for a novel silicon-oxygen interaction." The Journal of organic chemistry vol. 65,2 (2000): 469-74. doi: https://doi.org/10.1021/jo9913560
Nakamura S, Takemoto H, Ueno Y, Toru T, Kakumoto T, Hagiwara T. Stereoselective reaction of alpha-sulfinyl carbanion derived from chiral 2-(Trialkylsilyl)ethyl sulfoxides: evidence for a novel silicon-oxygen interaction. J Org Chem. 2000 Jan 28;65(2):469-74. doi: 10.1021/jo9913560. PMID: 10813959.
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On the problem in model selection of neural network regression in overrealizable scenario.

Neural computation

Hagiwara K.
PMID: 12180410
Neural Comput. 2002 Aug;14(8):1979-2002. doi: 10.1162/089976602760128090.

In considering a statistical model selection of neural networks and radial basis functions under an overrealizable case, the problem of unidentifiability emerges. Because the model selection criterion is an unbiased estimator of the generalization error based on the training...

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Hagiwara K. On the problem in model selection of neural network regression in overrealizable scenario. Neural Comput. 2002;14(8):1979-2002doi: 10.1162/089976602760128090.
Hagiwara, K. (2002). On the problem in model selection of neural network regression in overrealizable scenario. Neural computation, 14(8), 1979-2002. https://doi.org/10.1162/089976602760128090
Hagiwara, Katsuyuki. "On the problem in model selection of neural network regression in overrealizable scenario." Neural computation vol. 14,8 (2002): 1979-2002. doi: https://doi.org/10.1162/089976602760128090
Hagiwara K. On the problem in model selection of neural network regression in overrealizable scenario. Neural Comput. 2002 Aug;14(8):1979-2002. doi: 10.1162/089976602760128090. PMID: 12180410.
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Continuous intraarterial infusion of protease inhibitors in acute pancreatitis.

Drugs of today (Barcelona, Spain : 1998)

Komoriyama H, Tanaka I, Ikezawa H, Kanasugi K, Hagiwara M, Yamaguchi S.
PMID: 12783087
Drugs Today (Barc). 2001 Mar;37(3):151-158. doi: 10.1358/dot.2001.37.3.614850.

Low-molecular-weight protease inhibitors were synthesized and developed in Japan and are in clinical use there for the treatment of acute pancreatitis. However, protease inhibitors are not acknowledged as drugs for the treatment of pancreatitis in other countries. In a...

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Komoriyama H, Tanaka I, Ikezawa H, et al. Continuous intraarterial infusion of protease inhibitors in acute pancreatitis. Drugs Today (Barc). 2001;37(3):151-158doi: 10.1358/dot.2001.37.3.614850.
Komoriyama, H., Tanaka, I., Ikezawa, H., Kanasugi, K., Hagiwara, M., & Yamaguchi, S. (2001). Continuous intraarterial infusion of protease inhibitors in acute pancreatitis. Drugs of today (Barcelona, Spain : 1998), 37(3), 151-158. https://doi.org/10.1358/dot.2001.37.3.614850
Komoriyama, Hiroyuki, et al. "Continuous intraarterial infusion of protease inhibitors in acute pancreatitis." Drugs of today (Barcelona, Spain : 1998) vol. 37,3 (2001): 151-158. doi: https://doi.org/10.1358/dot.2001.37.3.614850
Komoriyama H, Tanaka I, Ikezawa H, Kanasugi K, Hagiwara M, Yamaguchi S. Continuous intraarterial infusion of protease inhibitors in acute pancreatitis. Drugs Today (Barc). 2001 Mar;37(3):151-158. doi: 10.1358/dot.2001.37.3.614850. PMID: 12783087.
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Experimental studies on the proton-induced activation reactions of molybdenum in the energy range 22-67 MeV.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

Uddin MS, Hagiwara M, Tarkanyi F, Ditroi F, Baba M.
PMID: 15110357
Appl Radiat Isot. 2004 Jun;60(6):911-20. doi: 10.1016/j.apradiso.2004.02.004.

The production cross-sections of (99,93m)Mo, (96,95,95m,94)Tc, (96,95,92m,90)Nb, (89,88,86)Zr and (88,87,86)Y radionuclides for proton-induced reactions on molybdenum were measured with molybdenum targets of natural isotopic composition using a stacked-foil activation technique in the energy range 22-67 MeV. The thick target...

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Uddin MS, Hagiwara M, Tarkanyi F, et al. Experimental studies on the proton-induced activation reactions of molybdenum in the energy range 22-67 MeV. Appl Radiat Isot. 2004;60(6):911-20doi: 10.1016/j.apradiso.2004.02.004.
Uddin, M. S., Hagiwara, M., Tarkanyi, F., Ditroi, F., & Baba, M. (2004). Experimental studies on the proton-induced activation reactions of molybdenum in the energy range 22-67 MeV. Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 60(6), 911-20. https://doi.org/10.1016/j.apradiso.2004.02.004
Uddin, M S, et al. "Experimental studies on the proton-induced activation reactions of molybdenum in the energy range 22-67 MeV." Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine vol. 60,6 (2004): 911-20. doi: https://doi.org/10.1016/j.apradiso.2004.02.004
Uddin MS, Hagiwara M, Tarkanyi F, Ditroi F, Baba M. Experimental studies on the proton-induced activation reactions of molybdenum in the energy range 22-67 MeV. Appl Radiat Isot. 2004 Jun;60(6):911-20. doi: 10.1016/j.apradiso.2004.02.004. PMID: 15110357.
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Rh-catalyzed [4 + 2] carbocyclization of vinylarylaldehydes with alkenes and alkynes leading to substituted tetralones and 1-naphthols.

Organic letters

Tanaka K, Hojo D, Shoji T, Hagiwara Y, Hirano M.
PMID: 17458973
Org Lett. 2007 May 24;9(11):2059-62. doi: 10.1021/ol0704587. Epub 2007 Apr 26.

Regio-, diastereo-, and enantioselective intermolecular [4 + 2] carbocyclizations of vinylarylaldehydes with alkenes and alkynes leading to substituted tetralones and 1-naphthols have been developed by using a cationic rhodium(I)/dppb or dppp complex as a catalyst.

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Tanaka K, Hojo D, Shoji T, et al. Rh-catalyzed [4 + 2] carbocyclization of vinylarylaldehydes with alkenes and alkynes leading to substituted tetralones and 1-naphthols. Org Lett. 2007;9(11):2059-62doi: 10.1021/ol0704587.
Tanaka, K., Hojo, D., Shoji, T., Hagiwara, Y., & Hirano, M. (2007). Rh-catalyzed [4 + 2] carbocyclization of vinylarylaldehydes with alkenes and alkynes leading to substituted tetralones and 1-naphthols. Organic letters, 9(11), 2059-62. https://doi.org/10.1021/ol0704587
Tanaka, Ken, et al. "Rh-catalyzed [4 + 2] carbocyclization of vinylarylaldehydes with alkenes and alkynes leading to substituted tetralones and 1-naphthols." Organic letters vol. 9,11 (2007): 2059-62. doi: https://doi.org/10.1021/ol0704587
Tanaka K, Hojo D, Shoji T, Hagiwara Y, Hirano M. Rh-catalyzed [4 + 2] carbocyclization of vinylarylaldehydes with alkenes and alkynes leading to substituted tetralones and 1-naphthols. Org Lett. 2007 May 24;9(11):2059-62. doi: 10.1021/ol0704587. Epub 2007 Apr 26. PMID: 17458973.
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X-ray diffractometer combining synchrotron radiation and pulsed magnetic fields up to 40 T.

Journal of synchrotron radiation

Narumi Y, Kindo K, Katsumata K, Kawauchi M, Broennimann Ch, Staub U, Toyokawa H, Tanaka Y, Kikkawa A, Yamamoto T, Hagiwara M, Ishikawa T, Kitamura H.
PMID: 16645253
J Synchrotron Radiat. 2006 May;13:271-4. doi: 10.1107/S0909049506006972. Epub 2006 Apr 13.

A synchrotron X-ray diffractometer incorporating a pulsed field magnet for high fields up to 40 T has been developed and a detailed description of this instrument is reported. The pulsed field magnet is composed of two coaxial coils with...

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Narumi Y, Kindo K, Katsumata K, et al. X-ray diffractometer combining synchrotron radiation and pulsed magnetic fields up to 40 T. J Synchrotron Radiat. 2006;13:271-4doi: 10.1107/S0909049506006972.
Narumi, Y., Kindo, K., Katsumata, K., Kawauchi, M., Broennimann, C. h., Staub, U., Toyokawa, H., Tanaka, Y., Kikkawa, A., Yamamoto, T., Hagiwara, M., Ishikawa, T., & Kitamura, H. (2006). X-ray diffractometer combining synchrotron radiation and pulsed magnetic fields up to 40 T. Journal of synchrotron radiation, 13271-4. https://doi.org/10.1107/S0909049506006972
Narumi, Y, et al. "X-ray diffractometer combining synchrotron radiation and pulsed magnetic fields up to 40 T." Journal of synchrotron radiation vol. 13 (2006): 271-4. doi: https://doi.org/10.1107/S0909049506006972
Narumi Y, Kindo K, Katsumata K, Kawauchi M, Broennimann Ch, Staub U, Toyokawa H, Tanaka Y, Kikkawa A, Yamamoto T, Hagiwara M, Ishikawa T, Kitamura H. X-ray diffractometer combining synchrotron radiation and pulsed magnetic fields up to 40 T. J Synchrotron Radiat. 2006 May;13:271-4. doi: 10.1107/S0909049506006972. Epub 2006 Apr 13. PMID: 16645253.
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Experimental studies on excitation functions of the proton-induced activation reactions on yttrium.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

Uddin MS, Hagiwara M, Baba M, Tarkanyi F, Ditroi F.
PMID: 15939593
Appl Radiat Isot. 2005 Sep;63(3):367-74. doi: 10.1016/j.apradiso.2005.04.006.

Proton-induced activation cross-sections were measured for the (89)Y(p,x)(89,88,86)Zr, (89)Y(p,x)(88,87,87 m,86)Y, (89)Y(p,x)(85,83,82)Sr and (89)Y(p,x)(84,83)Rb reactions by a stacked foil technique in the energy range 15-80 MeV which was covered by two separate measurements for 15-50 and 32-80 MeV energy range...

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Uddin MS, Hagiwara M, Baba M, et al. Experimental studies on excitation functions of the proton-induced activation reactions on yttrium. Appl Radiat Isot. 2005;63(3):367-74doi: 10.1016/j.apradiso.2005.04.006.
Uddin, M. S., Hagiwara, M., Baba, M., Tarkanyi, F., & Ditroi, F. (2005). Experimental studies on excitation functions of the proton-induced activation reactions on yttrium. Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 63(3), 367-74. https://doi.org/10.1016/j.apradiso.2005.04.006
Uddin, M S, et al. "Experimental studies on excitation functions of the proton-induced activation reactions on yttrium." Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine vol. 63,3 (2005): 367-74. doi: https://doi.org/10.1016/j.apradiso.2005.04.006
Uddin MS, Hagiwara M, Baba M, Tarkanyi F, Ditroi F. Experimental studies on excitation functions of the proton-induced activation reactions on yttrium. Appl Radiat Isot. 2005 Sep;63(3):367-74. doi: 10.1016/j.apradiso.2005.04.006. PMID: 15939593.
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Tomonaga-Luttinger liquid in a quasi-one-dimensional S = 1 antiferromagnet observed by specific heat measurements.

Physical review letters

Hagiwara M, Tsujii H, Rotundu CR, Andraka B, Takano Y, Tateiwa N, Kobayashi TC, Suzuki T, Suga S.
PMID: 16712116
Phys Rev Lett. 2006 Apr 14;96(14):147203. doi: 10.1103/PhysRevLett.96.147203. Epub 2006 Apr 12.

Specific-heat experiments on single crystals of the S = 1 quasi-one-dimensional bond-alternating antiferromagnet Ni(C9H24N4)(NO2)ClO2 (NTENP) have been performed in magnetic fields applied both parallel and perpendicular to the spin chains. We have found for the parallel field configuration that...

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Hagiwara M, Tsujii H, Rotundu CR, et al. Tomonaga-Luttinger liquid in a quasi-one-dimensional S = 1 antiferromagnet observed by specific heat measurements. Phys Rev Lett. 2006;96(14):147203doi: 10.1103/PhysRevLett.96.147203.
Hagiwara, M., Tsujii, H., Rotundu, C. R., Andraka, B., Takano, Y., Tateiwa, N., Kobayashi, T. C., Suzuki, T., & Suga, S. (2006). Tomonaga-Luttinger liquid in a quasi-one-dimensional S = 1 antiferromagnet observed by specific heat measurements. Physical review letters, 96(14), 147203. https://doi.org/10.1103/PhysRevLett.96.147203
Hagiwara, M, et al. "Tomonaga-Luttinger liquid in a quasi-one-dimensional S = 1 antiferromagnet observed by specific heat measurements." Physical review letters vol. 96,14 (2006): 147203. doi: https://doi.org/10.1103/PhysRevLett.96.147203
Hagiwara M, Tsujii H, Rotundu CR, Andraka B, Takano Y, Tateiwa N, Kobayashi TC, Suzuki T, Suga S. Tomonaga-Luttinger liquid in a quasi-one-dimensional S = 1 antiferromagnet observed by specific heat measurements. Phys Rev Lett. 2006 Apr 14;96(14):147203. doi: 10.1103/PhysRevLett.96.147203. Epub 2006 Apr 12. PMID: 16712116.
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Spin excitations in an anisotropic bond-alternating quantum s = 1 chain in a magnetic field: contrast to haldane spin chains.

Physical review letters

Hagiwara M, Regnault LP, Zheludev A, Stunault A, Metoki N, Suzuki T, Suga S, Kakurai K, Koike Y, Vorderwisch P, Chung JH.
PMID: 15904331
Phys Rev Lett. 2005 May 06;94(17):177202. doi: 10.1103/PhysRevLett.94.177202. Epub 2005 May 04.

Inelastic neutron scattering experiments on the S = 1 quasi-one-dimensional bond-alternating antiferromagnet Ni(C9D24N4)(NO2)ClO4 have been performed under magnetic fields below and above a critical field Hc at which the energy gap closes. Normal field dependence of Zeeman splitting of...

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Hagiwara M, Regnault LP, Zheludev A, et al. Spin excitations in an anisotropic bond-alternating quantum s = 1 chain in a magnetic field: contrast to haldane spin chains. Phys Rev Lett. 2005;94(17):177202doi: 10.1103/PhysRevLett.94.177202.
Hagiwara, M., Regnault, L. P., Zheludev, A., Stunault, A., Metoki, N., Suzuki, T., Suga, S., Kakurai, K., Koike, Y., Vorderwisch, P., & Chung, J. H. (2005). Spin excitations in an anisotropic bond-alternating quantum s = 1 chain in a magnetic field: contrast to haldane spin chains. Physical review letters, 94(17), 177202. https://doi.org/10.1103/PhysRevLett.94.177202
Hagiwara, M, et al. "Spin excitations in an anisotropic bond-alternating quantum s = 1 chain in a magnetic field: contrast to haldane spin chains." Physical review letters vol. 94,17 (2005): 177202. doi: https://doi.org/10.1103/PhysRevLett.94.177202
Hagiwara M, Regnault LP, Zheludev A, Stunault A, Metoki N, Suzuki T, Suga S, Kakurai K, Koike Y, Vorderwisch P, Chung JH. Spin excitations in an anisotropic bond-alternating quantum s = 1 chain in a magnetic field: contrast to haldane spin chains. Phys Rev Lett. 2005 May 06;94(17):177202. doi: 10.1103/PhysRevLett.94.177202. Epub 2005 May 04. PMID: 15904331.
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Direct intermolecular hydroacylation of N,N-dialkylacrylamides with aldehydes catalyzed by a cationic rhodium(I)/dppb complex.

Organic letters

Tanaka K, Shibata Y, Suda T, Hagiwara Y, Hirano M.
PMID: 17341091
Org Lett. 2007 Mar 29;9(7):1215-8. doi: 10.1021/ol070153s. Epub 2007 Mar 07.

[structure: see text]. A cationic rhodium(I)/dppb complex catalyzed direct intermolecular hydroacylation of N,N-dialkylacrylamides with both aliphatic and aromatic aldehydes has been achieved through the stabilization of acylrhodium intermediates by alkene chelation to rhodium. This method represents a versatile new...

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Tanaka K, Shibata Y, Suda T, et al. Direct intermolecular hydroacylation of N,N-dialkylacrylamides with aldehydes catalyzed by a cationic rhodium(I)/dppb complex. Org Lett. 2007;9(7):1215-8doi: 10.1021/ol070153s.
Tanaka, K., Shibata, Y., Suda, T., Hagiwara, Y., & Hirano, M. (2007). Direct intermolecular hydroacylation of N,N-dialkylacrylamides with aldehydes catalyzed by a cationic rhodium(I)/dppb complex. Organic letters, 9(7), 1215-8. https://doi.org/10.1021/ol070153s
Tanaka, Ken, et al. "Direct intermolecular hydroacylation of N,N-dialkylacrylamides with aldehydes catalyzed by a cationic rhodium(I)/dppb complex." Organic letters vol. 9,7 (2007): 1215-8. doi: https://doi.org/10.1021/ol070153s
Tanaka K, Shibata Y, Suda T, Hagiwara Y, Hirano M. Direct intermolecular hydroacylation of N,N-dialkylacrylamides with aldehydes catalyzed by a cationic rhodium(I)/dppb complex. Org Lett. 2007 Mar 29;9(7):1215-8. doi: 10.1021/ol070153s. Epub 2007 Mar 07. PMID: 17341091.
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Synthesis and properties of a chelating resin containing triazolethiol groups.

Talanta

Sugii A, Ogawa N, Hagiwara Y.
PMID: 18963729
Talanta. 1984 Dec;31(12):1079-82. doi: 10.1016/0039-9140(84)80254-4.

A macroreticular poly(acrylic acid)-based resin with triazolethiol as the functional group has been synthesized. The stability of the resin in acidic media and the behaviour in sorption and desorption of various metal ions have been investigated and compared with...

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Sugii A, Ogawa N, Hagiwara Y. Synthesis and properties of a chelating resin containing triazolethiol groups. Talanta. 1984;31(12):1079-82doi: 10.1016/0039-9140(84)80254-4.
Sugii, A., Ogawa, N., & Hagiwara, Y. (1984). Synthesis and properties of a chelating resin containing triazolethiol groups. Talanta, 31(12), 1079-82. https://doi.org/10.1016/0039-9140(84)80254-4
Sugii, A, et al. "Synthesis and properties of a chelating resin containing triazolethiol groups." Talanta vol. 31,12 (1984): 1079-82. doi: https://doi.org/10.1016/0039-9140(84)80254-4
Sugii A, Ogawa N, Hagiwara Y. Synthesis and properties of a chelating resin containing triazolethiol groups. Talanta. 1984 Dec;31(12):1079-82. doi: 10.1016/0039-9140(84)80254-4. PMID: 18963729.
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Immobilization of Pd(OAc)(2) in ionic liquid on silica: application to sustainable Mizoroki-Heck reaction.

Organic letters

Hagiwara H, Sugawara Y, Isobe K, Hoshi T, Suzuki T.
PMID: 15228270
Org Lett. 2004 Jul 08;6(14):2325-8. doi: 10.1021/ol049343i.

[reaction: see text] Palladium acetate was supported on amorphous silica with the aid of an ionic liquid, [bmim]PF(6). The immobilized catalyst was highly efficient in promoting the Mizoroki-Heck reaction without a ligand in n-dodecane for at least six reuses,...

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Hagiwara H, Sugawara Y, Isobe K, et al. Immobilization of Pd(OAc)(2) in ionic liquid on silica: application to sustainable Mizoroki-Heck reaction. Org Lett. 2004;6(14):2325-8doi: 10.1021/ol049343i.
Hagiwara, H., Sugawara, Y., Isobe, K., Hoshi, T., & Suzuki, T. (2004). Immobilization of Pd(OAc)(2) in ionic liquid on silica: application to sustainable Mizoroki-Heck reaction. Organic letters, 6(14), 2325-8. https://doi.org/10.1021/ol049343i
Hagiwara, Hisahiro, et al. "Immobilization of Pd(OAc)(2) in ionic liquid on silica: application to sustainable Mizoroki-Heck reaction." Organic letters vol. 6,14 (2004): 2325-8. doi: https://doi.org/10.1021/ol049343i
Hagiwara H, Sugawara Y, Isobe K, Hoshi T, Suzuki T. Immobilization of Pd(OAc)(2) in ionic liquid on silica: application to sustainable Mizoroki-Heck reaction. Org Lett. 2004 Jul 08;6(14):2325-8. doi: 10.1021/ol049343i. PMID: 15228270.
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Showing 25 to 36 of 1195 entries