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The Propargyl Rearrangement to Functionalised Allyl-Boron and Borocation Compounds.

Chemistry (Weinheim an der Bergstrasse, Germany)

Wilkins LC, Lawson JR, Wieneke P, Rominger F, Hashmi AS, Hansmann MM, Melen RL.
PMID: 27538742
Chemistry. 2016 Oct 04;22(41):14618-24. doi: 10.1002/chem.201602719. Epub 2016 Aug 19.

A diverse range of Lewis acidic alkyl, vinyl and aryl boranes and borenium compounds that are capable of new carbon-carbon bond formation through selective migratory group transfer have been synthesised. Utilising a series of heteroleptic boranes [PhB(C6 F5 )2...

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Wilkins LC, Lawson JR, Wieneke P, et al. The Propargyl Rearrangement to Functionalised Allyl-Boron and Borocation Compounds. Chemistry. 2016;22(41):14618-24doi: 10.1002/chem.201602719.
Wilkins, L. C., Lawson, J. R., Wieneke, P., Rominger, F., Hashmi, A. S., Hansmann, M. M., & Melen, R. L. (2016). The Propargyl Rearrangement to Functionalised Allyl-Boron and Borocation Compounds. Chemistry (Weinheim an der Bergstrasse, Germany), 22(41), 14618-24. https://doi.org/10.1002/chem.201602719
Wilkins, Lewis C, et al. "The Propargyl Rearrangement to Functionalised Allyl-Boron and Borocation Compounds." Chemistry (Weinheim an der Bergstrasse, Germany) vol. 22,41 (2016): 14618-24. doi: https://doi.org/10.1002/chem.201602719
Wilkins LC, Lawson JR, Wieneke P, Rominger F, Hashmi AS, Hansmann MM, Melen RL. The Propargyl Rearrangement to Functionalised Allyl-Boron and Borocation Compounds. Chemistry. 2016 Oct 04;22(41):14618-24. doi: 10.1002/chem.201602719. Epub 2016 Aug 19. PMID: 27538742.
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Base-promoted coupling of carbon dioxide, amines, and diaryliodonium salts: a phosgene- and metal-free route to O-aryl carbamates.

Chemistry (Weinheim an der Bergstrasse, Germany)

Xiong W, Qi C, Peng Y, Guo T, Zhang M, Jiang H.
PMID: 26305389
Chemistry. 2015 Oct 05;21(41):14314-8. doi: 10.1002/chem.201502689. Epub 2015 Aug 25.

A phosgene- and metal-free synthesis of O-aryl carbamates is realized through a three-component coupling of carbon dioxide, amines and diaryliodonium salts. The reaction only requires a base as the promoter, providing access to a diverse array of O-aryl carbamates...

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Xiong W, Qi C, Peng Y, et al. Base-promoted coupling of carbon dioxide, amines, and diaryliodonium salts: a phosgene- and metal-free route to O-aryl carbamates. Chemistry. 2015;21(41):14314-8doi: 10.1002/chem.201502689.
Xiong, W., Qi, C., Peng, Y., Guo, T., Zhang, M., & Jiang, H. (2015). Base-promoted coupling of carbon dioxide, amines, and diaryliodonium salts: a phosgene- and metal-free route to O-aryl carbamates. Chemistry (Weinheim an der Bergstrasse, Germany), 21(41), 14314-8. https://doi.org/10.1002/chem.201502689
Xiong, Wenfang, et al. "Base-promoted coupling of carbon dioxide, amines, and diaryliodonium salts: a phosgene- and metal-free route to O-aryl carbamates." Chemistry (Weinheim an der Bergstrasse, Germany) vol. 21,41 (2015): 14314-8. doi: https://doi.org/10.1002/chem.201502689
Xiong W, Qi C, Peng Y, Guo T, Zhang M, Jiang H. Base-promoted coupling of carbon dioxide, amines, and diaryliodonium salts: a phosgene- and metal-free route to O-aryl carbamates. Chemistry. 2015 Oct 05;21(41):14314-8. doi: 10.1002/chem.201502689. Epub 2015 Aug 25. PMID: 26305389.
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Functional group analysis of starches reacted with urea-phosphoric acid-Correlation of wet chemical measures with FT Raman spectroscopy.

Carbohydrate polymers

Passauer L, Bender H.
PMID: 28457460
Carbohydr Polym. 2017 Jul 15;168:356-364. doi: 10.1016/j.carbpol.2017.03.094. Epub 2017 Mar 30.

Because the degree of substitution (DS) of chemically modified starches strongly affects their physicochemical properties and applications, rapid techniques for its determination are crucial. In the present work, ammonium starch phosphates carbamates (SPC) were obtained by reacting starch with...

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Passauer L, Bender H. Functional group analysis of starches reacted with urea-phosphoric acid-Correlation of wet chemical measures with FT Raman spectroscopy. Carbohydr Polym. 2017;168:356-364doi: 10.1016/j.carbpol.2017.03.094.
Passauer, L., & Bender, H. (2017). Functional group analysis of starches reacted with urea-phosphoric acid-Correlation of wet chemical measures with FT Raman spectroscopy. Carbohydrate polymers, 168356-364. https://doi.org/10.1016/j.carbpol.2017.03.094
Passauer, Lars, and Bender, Hans. "Functional group analysis of starches reacted with urea-phosphoric acid-Correlation of wet chemical measures with FT Raman spectroscopy." Carbohydrate polymers vol. 168 (2017): 356-364. doi: https://doi.org/10.1016/j.carbpol.2017.03.094
Passauer L, Bender H. Functional group analysis of starches reacted with urea-phosphoric acid-Correlation of wet chemical measures with FT Raman spectroscopy. Carbohydr Polym. 2017 Jul 15;168:356-364. doi: 10.1016/j.carbpol.2017.03.094. Epub 2017 Mar 30. PMID: 28457460.
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Full chirality transfer in the synthesis of hindered tertiary boronic esters under in situ lithiation-borylation conditions.

Chemical communications (Cambridge, England)

Blair DJ, Zhong S, Hesse MJ, Zabaleta N, Myers EL, Aggarwal VK.
PMID: 27002235
Chem Commun (Camb). 2016 Apr 18;52(30):5289-92. doi: 10.1039/c6cc00536e. Epub 2016 Mar 22.

Hindered tertiary neopentyl glycol boronic esters can be prepared by using in situ lithiation-borylation of enantiopure secondary benzylic carbamates at -20 °C with full chirality transfer.

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Blair DJ, Zhong S, Hesse MJ, et al. Full chirality transfer in the synthesis of hindered tertiary boronic esters under in situ lithiation-borylation conditions. Chem Commun (Camb). 2016;52(30):5289-92doi: 10.1039/c6cc00536e.
Blair, D. J., Zhong, S., Hesse, M. J., Zabaleta, N., Myers, E. L., & Aggarwal, V. K. (2016). Full chirality transfer in the synthesis of hindered tertiary boronic esters under in situ lithiation-borylation conditions. Chemical communications (Cambridge, England), 52(30), 5289-92. https://doi.org/10.1039/c6cc00536e
Blair, D J, et al. "Full chirality transfer in the synthesis of hindered tertiary boronic esters under in situ lithiation-borylation conditions." Chemical communications (Cambridge, England) vol. 52,30 (2016): 5289-92. doi: https://doi.org/10.1039/c6cc00536e
Blair DJ, Zhong S, Hesse MJ, Zabaleta N, Myers EL, Aggarwal VK. Full chirality transfer in the synthesis of hindered tertiary boronic esters under in situ lithiation-borylation conditions. Chem Commun (Camb). 2016 Apr 18;52(30):5289-92. doi: 10.1039/c6cc00536e. Epub 2016 Mar 22. PMID: 27002235.
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Tandem buildup of complexity of aromatic molecules through multiple successive electrophile generation in one pot, controlled by varying the reaction temperature.

Organic & biomolecular chemistry

Sumita A, Otani Y, Ohwada T.
PMID: 26699842
Org Biomol Chem. 2016 Feb 07;14(5):1680-93. doi: 10.1039/c5ob02240a.

While some sequential electrophilic aromatic substitution reactions, known as tandem/domino/cascade reactions, have been reported for the construction of aromatic single skeletons, one of the most interesting and challenging possibilities remains the one-pot build-up of a complex aromatic molecule from...

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Sumita A, Otani Y, Ohwada T. Tandem buildup of complexity of aromatic molecules through multiple successive electrophile generation in one pot, controlled by varying the reaction temperature. Org Biomol Chem. 2016;14(5):1680-93doi: 10.1039/c5ob02240a.
Sumita, A., Otani, Y., & Ohwada, T. (2016). Tandem buildup of complexity of aromatic molecules through multiple successive electrophile generation in one pot, controlled by varying the reaction temperature. Organic & biomolecular chemistry, 14(5), 1680-93. https://doi.org/10.1039/c5ob02240a
Sumita, Akinari, et al. "Tandem buildup of complexity of aromatic molecules through multiple successive electrophile generation in one pot, controlled by varying the reaction temperature." Organic & biomolecular chemistry vol. 14,5 (2016): 1680-93. doi: https://doi.org/10.1039/c5ob02240a
Sumita A, Otani Y, Ohwada T. Tandem buildup of complexity of aromatic molecules through multiple successive electrophile generation in one pot, controlled by varying the reaction temperature. Org Biomol Chem. 2016 Feb 07;14(5):1680-93. doi: 10.1039/c5ob02240a. PMID: 26699842.
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Chiral Phosphoric Acid-Catalyzed Enantioselective Formal [3+2] Cycloaddition of Azomethine Imines with Enecarbamates.

Chemistry (Weinheim an der Bergstrasse, Germany)

Wang Y, Wang Q, Zhu J.
PMID: 27135440
Chemistry. 2016 Jun 06;22(24):8084-8. doi: 10.1002/chem.201601548. Epub 2016 May 02.

The first catalytic asymmetric inverse electron demand 1,3-dipolar cycloaddition of azomethine imines with enecarbamates has been developed. Isoquinoline-fused pyrazolidines containing two or three contiguous stereogenic centers were obtained in high yields with excellent regio-, diastereo-, and enantioselectivities. The pyrazolidine...

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Wang Y, Wang Q, Zhu J. Chiral Phosphoric Acid-Catalyzed Enantioselective Formal [3+2] Cycloaddition of Azomethine Imines with Enecarbamates. Chemistry. 2016;22(24):8084-8doi: 10.1002/chem.201601548.
Wang, Y., Wang, Q., & Zhu, J. (2016). Chiral Phosphoric Acid-Catalyzed Enantioselective Formal [3+2] Cycloaddition of Azomethine Imines with Enecarbamates. Chemistry (Weinheim an der Bergstrasse, Germany), 22(24), 8084-8. https://doi.org/10.1002/chem.201601548
Wang, Yang, et al. "Chiral Phosphoric Acid-Catalyzed Enantioselective Formal [3+2] Cycloaddition of Azomethine Imines with Enecarbamates." Chemistry (Weinheim an der Bergstrasse, Germany) vol. 22,24 (2016): 8084-8. doi: https://doi.org/10.1002/chem.201601548
Wang Y, Wang Q, Zhu J. Chiral Phosphoric Acid-Catalyzed Enantioselective Formal [3+2] Cycloaddition of Azomethine Imines with Enecarbamates. Chemistry. 2016 Jun 06;22(24):8084-8. doi: 10.1002/chem.201601548. Epub 2016 May 02. PMID: 27135440.
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Rhodium-Catalyzed C-O Bond Alkynylation of Aryl Carbamates with Propargyl Alcohols.

Organic letters

Yasui K, Chatani N, Tobisu M.
PMID: 29578720
Org Lett. 2018 Apr 06;20(7):2108-2111. doi: 10.1021/acs.orglett.8b00674. Epub 2018 Mar 26.

The rhodium-catalyzed alkynylation of aryl carbamates with propargyl alcohols is described. This methodology can provide aryl acetylenes from aryl carbamates via C-O bond activation. The use of propargyl alcohols as alkynylating agents allows the use of a variety of...

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Yasui K, Chatani N, Tobisu M. Rhodium-Catalyzed C-O Bond Alkynylation of Aryl Carbamates with Propargyl Alcohols. Org Lett. 2018;20(7):2108-2111doi: 10.1021/acs.orglett.8b00674.
Yasui, K., Chatani, N., & Tobisu, M. (2018). Rhodium-Catalyzed C-O Bond Alkynylation of Aryl Carbamates with Propargyl Alcohols. Organic letters, 20(7), 2108-2111. https://doi.org/10.1021/acs.orglett.8b00674
Yasui, Kosuke, et al. "Rhodium-Catalyzed C-O Bond Alkynylation of Aryl Carbamates with Propargyl Alcohols." Organic letters vol. 20,7 (2018): 2108-2111. doi: https://doi.org/10.1021/acs.orglett.8b00674
Yasui K, Chatani N, Tobisu M. Rhodium-Catalyzed C-O Bond Alkynylation of Aryl Carbamates with Propargyl Alcohols. Org Lett. 2018 Apr 06;20(7):2108-2111. doi: 10.1021/acs.orglett.8b00674. Epub 2018 Mar 26. PMID: 29578720.
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Modifying bis(triflimide) ionic liquids by dissolving early transition metal carbamates.

Physical chemistry chemical physics : PCCP

Biancalana L, Bresciani G, Chiappe C, Marchetti F, Pampaloni G, Pomelli CS.
PMID: 29388992
Phys Chem Chem Phys. 2018 Feb 14;20(7):5057-5066. doi: 10.1039/c7cp07289a.

The authors report the first modification of ionic liquids with metal carbamates. A selection of homoleptic N,N-dialkylcarbamates of group 4 and 5 metals, M(O

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Biancalana L, Bresciani G, Chiappe C, et al. Modifying bis(triflimide) ionic liquids by dissolving early transition metal carbamates. Phys Chem Chem Phys. 2018;20(7):5057-5066doi: 10.1039/c7cp07289a.
Biancalana, L., Bresciani, G., Chiappe, C., Marchetti, F., Pampaloni, G., & Pomelli, C. S. (2018). Modifying bis(triflimide) ionic liquids by dissolving early transition metal carbamates. Physical chemistry chemical physics : PCCP, 20(7), 5057-5066. https://doi.org/10.1039/c7cp07289a
Biancalana, Lorenzo, et al. "Modifying bis(triflimide) ionic liquids by dissolving early transition metal carbamates." Physical chemistry chemical physics : PCCP vol. 20,7 (2018): 5057-5066. doi: https://doi.org/10.1039/c7cp07289a
Biancalana L, Bresciani G, Chiappe C, Marchetti F, Pampaloni G, Pomelli CS. Modifying bis(triflimide) ionic liquids by dissolving early transition metal carbamates. Phys Chem Chem Phys. 2018 Feb 14;20(7):5057-5066. doi: 10.1039/c7cp07289a. PMID: 29388992.
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Two isostructural carbamates: the o-tolyl N-(pyridin-3-yl)carbamate and 2-bromo-phenyl N-(pyridin-3-yl)carbamate monohydrates.

Acta crystallographica. Section E, Crystallographic communications

Mocilac P, Gallagher JF.
PMID: 26594512
Acta Crystallogr E Crystallogr Commun. 2015 Oct 24;71:1366-70. doi: 10.1107/S2056989015019556. eCollection 2015 Nov 01.

The title carbamate monohydrates, C13H12N2O2·H2O and C12H9BrN2O2·H2O, form isomorphous crystals that are isostructural in their primary hydrogen-bonding modes. In both carbamates, the primary hydrogen bonding and aggregation involves cyclic amide-water-pyridine moieties as (N-H⋯O-H⋯N)2 dimers about inversion centres [as R...

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Mocilac P, Gallagher JF. Two isostructural carbamates: the o-tolyl N-(pyridin-3-yl)carbamate and 2-bromo-phenyl N-(pyridin-3-yl)carbamate monohydrates. Acta Crystallogr E Crystallogr Commun. 2015;71:1366-70doi: 10.1107/S2056989015019556.
Mocilac, P., & Gallagher, J. F. (2015). Two isostructural carbamates: the o-tolyl N-(pyridin-3-yl)carbamate and 2-bromo-phenyl N-(pyridin-3-yl)carbamate monohydrates. Acta crystallographica. Section E, Crystallographic communications, 711366-70. https://doi.org/10.1107/S2056989015019556
Mocilac, Pavle, and Gallagher, John F. "Two isostructural carbamates: the o-tolyl N-(pyridin-3-yl)carbamate and 2-bromo-phenyl N-(pyridin-3-yl)carbamate monohydrates." Acta crystallographica. Section E, Crystallographic communications vol. 71 (2015): 1366-70. doi: https://doi.org/10.1107/S2056989015019556
Mocilac P, Gallagher JF. Two isostructural carbamates: the o-tolyl N-(pyridin-3-yl)carbamate and 2-bromo-phenyl N-(pyridin-3-yl)carbamate monohydrates. Acta Crystallogr E Crystallogr Commun. 2015 Oct 24;71:1366-70. doi: 10.1107/S2056989015019556. eCollection 2015 Nov 01. PMID: 26594512; PMCID: PMC4645058.
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Gold-catalyzed oxycyclization of allenic carbamates: expeditious synthesis of 1,3-oxazin-2-ones.

Beilstein journal of organic chemistry

Alcaide B, Almendros P, Quirós MT, Fernández I.
PMID: 23766795
Beilstein J Org Chem. 2013 Apr 26;9:818-26. doi: 10.3762/bjoc.9.93. Print 2013.

A combined experimental and computational study on regioselective gold-catalyzed synthetic routes to 1,3-oxazinan-2-ones (kinetically controlled products) and 1,3-oxazin-2-one derivatives (thermodynamically favored) from easily accessible allenic carbamates has been carried out.

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Alcaide B, Almendros P, Quirós MT, et al. Gold-catalyzed oxycyclization of allenic carbamates: expeditious synthesis of 1,3-oxazin-2-ones. Beilstein J Org Chem. 2013;9:818-26doi: 10.3762/bjoc.9.93.
Alcaide, B., Almendros, P., Quirós, M. T., & Fernández, I. (2013). Gold-catalyzed oxycyclization of allenic carbamates: expeditious synthesis of 1,3-oxazin-2-ones. Beilstein journal of organic chemistry, 9818-26. https://doi.org/10.3762/bjoc.9.93
Alcaide, Benito, et al. "Gold-catalyzed oxycyclization of allenic carbamates: expeditious synthesis of 1,3-oxazin-2-ones." Beilstein journal of organic chemistry vol. 9 (2013): 818-26. doi: https://doi.org/10.3762/bjoc.9.93
Alcaide B, Almendros P, Quirós MT, Fernández I. Gold-catalyzed oxycyclization of allenic carbamates: expeditious synthesis of 1,3-oxazin-2-ones. Beilstein J Org Chem. 2013 Apr 26;9:818-26. doi: 10.3762/bjoc.9.93. Print 2013. PMID: 23766795; PMCID: PMC3678844.
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Direct Amidation of N-Boc- and N-Cbz-Protected Amines via Rhodium-Catalyzed Coupling of Arylboroxines and Carbamates.

Organic letters

Lim DS, Lew TT, Zhang Y.
PMID: 26605554
Org Lett. 2015 Dec 18;17(24):6054-7. doi: 10.1021/acs.orglett.5b03061. Epub 2015 Nov 25.

N-Boc- and N-Cbz-protected amines are directly converted into amides by a novel rhodium-catalyzed coupling of arylboroxines and carbamates, replacing the traditional two-step deprotection-condensation sequence. Both protected anilines and aliphatic amines are efficiently transformed into a wide variety of secondary...

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Lim DS, Lew TT, Zhang Y. Direct Amidation of N-Boc- and N-Cbz-Protected Amines via Rhodium-Catalyzed Coupling of Arylboroxines and Carbamates. Org Lett. 2015;17(24):6054-7doi: 10.1021/acs.orglett.5b03061.
Lim, D. S., Lew, T. T., & Zhang, Y. (2015). Direct Amidation of N-Boc- and N-Cbz-Protected Amines via Rhodium-Catalyzed Coupling of Arylboroxines and Carbamates. Organic letters, 17(24), 6054-7. https://doi.org/10.1021/acs.orglett.5b03061
Lim, Diane S W, et al. "Direct Amidation of N-Boc- and N-Cbz-Protected Amines via Rhodium-Catalyzed Coupling of Arylboroxines and Carbamates." Organic letters vol. 17,24 (2015): 6054-7. doi: https://doi.org/10.1021/acs.orglett.5b03061
Lim DS, Lew TT, Zhang Y. Direct Amidation of N-Boc- and N-Cbz-Protected Amines via Rhodium-Catalyzed Coupling of Arylboroxines and Carbamates. Org Lett. 2015 Dec 18;17(24):6054-7. doi: 10.1021/acs.orglett.5b03061. Epub 2015 Nov 25. PMID: 26605554.
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QuEChERS-based approach toward the analysis of two insecticides, methomyl and aldicarb, in blood and brain tissue.

Analytical methods : advancing methods and applications

DeArmond PD, Brittain MK, Platoff GE, Yeung DT.
PMID: 25580162
Anal Methods. 2015 Jan 07;7(1):321-328. doi: 10.1039/C4AY02137A.

QuEChERS has been widely utilized for the analysis of pesticides in produce, but it has not been as widely used in clinical test specimens, especially for smaller, sub-gram sample sizes. This study describes the application of a miniaturized QuEChERS...

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DeArmond PD, Brittain MK, Platoff GE, et al. QuEChERS-based approach toward the analysis of two insecticides, methomyl and aldicarb, in blood and brain tissue. Anal Methods. 2015;7(1):321-328doi: 10.1039/C4AY02137A.
DeArmond, P. D., Brittain, M. K., Platoff, G. E., & Yeung, D. T. (2015). QuEChERS-based approach toward the analysis of two insecticides, methomyl and aldicarb, in blood and brain tissue. Analytical methods : advancing methods and applications, 7(1), 321-328. https://doi.org/10.1039/C4AY02137A
DeArmond, Patrick D, et al. "QuEChERS-based approach toward the analysis of two insecticides, methomyl and aldicarb, in blood and brain tissue." Analytical methods : advancing methods and applications vol. 7,1 (2015): 321-328. doi: https://doi.org/10.1039/C4AY02137A
DeArmond PD, Brittain MK, Platoff GE, Yeung DT. QuEChERS-based approach toward the analysis of two insecticides, methomyl and aldicarb, in blood and brain tissue. Anal Methods. 2015 Jan 07;7(1):321-328. doi: 10.1039/C4AY02137A. PMID: 25580162; PMCID: PMC4287231.
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Showing 1 to 12 of 634 entries