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Defensive chemistry of the flour beetleTribolium brevicornis (LeC): : Presence of known and potential prostaglandin synthetase inhibitors.

Journal of chemical ecology

Howard RW, Mueller DD.
PMID: 24302339
J Chem Ecol. 1987 Jul;13(7):1707-23. doi: 10.1007/BF00980212.

The defensive secretion ofTribolium brevicornis contains 12 organic components, including quinones, hydroquinones, hydrocarbons, aromatic ketones, and aromatic esters. The two ketones, 2'-hydroxy-4'-methoxyacetophenone and 2'-hydroxy-4'-methoxypropiophenone, and the two esters, methyl 2,5-dihydroxy-6-methylbenzoate and methyl 2,5-dihydroxy-6-ethylbenzoate, represent ca. 0.25% of the biomass...

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Howard RW, Mueller DD. Defensive chemistry of the flour beetleTribolium brevicornis (LeC): : Presence of known and potential prostaglandin synthetase inhibitors. J Chem Ecol. 1987;13(7):1707-23doi: 10.1007/BF00980212.
Howard, R. W., & Mueller, D. D. (1987). Defensive chemistry of the flour beetleTribolium brevicornis (LeC): : Presence of known and potential prostaglandin synthetase inhibitors. Journal of chemical ecology, 13(7), 1707-23. https://doi.org/10.1007/BF00980212
Howard, R W, and Mueller, D D. "Defensive chemistry of the flour beetleTribolium brevicornis (LeC): : Presence of known and potential prostaglandin synthetase inhibitors." Journal of chemical ecology vol. 13,7 (1987): 1707-23. doi: https://doi.org/10.1007/BF00980212
Howard RW, Mueller DD. Defensive chemistry of the flour beetleTribolium brevicornis (LeC): : Presence of known and potential prostaglandin synthetase inhibitors. J Chem Ecol. 1987 Jul;13(7):1707-23. doi: 10.1007/BF00980212. PMID: 24302339.
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Control of reaction pathways in the photochemical reaction of a quinone with tetramethylethylene by metal binding.

Organic & biomolecular chemistry

Yamamoto H, Ohkubo K, Akimoto S, Fukuzumi S, Tsuda A.
PMID: 24947667
Org Biomol Chem. 2014 Sep 28;12(36):7004-17. doi: 10.1039/c4ob00659c.

The present study reports a novel supramolecular photochemical reaction that focuses on the direct electronic interactions between a host reaction substrate and guest metal salts. The reaction pathways in the photochemical reactions of quinone derivatives bearing a methoxy group...

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Yamamoto H, Ohkubo K, Akimoto S, et al. Control of reaction pathways in the photochemical reaction of a quinone with tetramethylethylene by metal binding. Org Biomol Chem. 2014;12(36):7004-17doi: 10.1039/c4ob00659c.
Yamamoto, H., Ohkubo, K., Akimoto, S., Fukuzumi, S., & Tsuda, A. (2014). Control of reaction pathways in the photochemical reaction of a quinone with tetramethylethylene by metal binding. Organic & biomolecular chemistry, 12(36), 7004-17. https://doi.org/10.1039/c4ob00659c
Yamamoto, Hiroaki, et al. "Control of reaction pathways in the photochemical reaction of a quinone with tetramethylethylene by metal binding." Organic & biomolecular chemistry vol. 12,36 (2014): 7004-17. doi: https://doi.org/10.1039/c4ob00659c
Yamamoto H, Ohkubo K, Akimoto S, Fukuzumi S, Tsuda A. Control of reaction pathways in the photochemical reaction of a quinone with tetramethylethylene by metal binding. Org Biomol Chem. 2014 Sep 28;12(36):7004-17. doi: 10.1039/c4ob00659c. PMID: 24947667.
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Strong supramolecular-based magnetic exchange in pi-stacked radicals. Structure and magnetism of a hydrogen-bonded verdazyl radical:hydroquinone molecular solid.

Journal of the American Chemical Society

Hicks RG, Lemaire MT, Ohrström L, Richardson JF, Thompson LK, Xu Z.
PMID: 11459496
J Am Chem Soc. 2001 Jul 25;123(29):7154-9. doi: 10.1021/ja010725i.

The X-ray crystal structure and magnetic properties of a molecular crystal consisting of 1,5-dimethyl-3-(2-pyridyl)-6-oxoverdazyl radical and hydroquinone (pyvd:hq) are presented. The structure contains a two-dimensional network of hydrogen bonds involving the hydroquinones and the pyridine ring of the pyvd...

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Hicks RG, Lemaire MT, Ohrström L, et al. Strong supramolecular-based magnetic exchange in pi-stacked radicals. Structure and magnetism of a hydrogen-bonded verdazyl radical:hydroquinone molecular solid. J Am Chem Soc. 2001;123(29):7154-9doi: 10.1021/ja010725i.
Hicks, R. G., Lemaire, M. T., Ohrström, L., Richardson, J. F., Thompson, L. K., & Xu, Z. (2001). Strong supramolecular-based magnetic exchange in pi-stacked radicals. Structure and magnetism of a hydrogen-bonded verdazyl radical:hydroquinone molecular solid. Journal of the American Chemical Society, 123(29), 7154-9. https://doi.org/10.1021/ja010725i
Hicks, R G, et al. "Strong supramolecular-based magnetic exchange in pi-stacked radicals. Structure and magnetism of a hydrogen-bonded verdazyl radical:hydroquinone molecular solid." Journal of the American Chemical Society vol. 123,29 (2001): 7154-9. doi: https://doi.org/10.1021/ja010725i
Hicks RG, Lemaire MT, Ohrström L, Richardson JF, Thompson LK, Xu Z. Strong supramolecular-based magnetic exchange in pi-stacked radicals. Structure and magnetism of a hydrogen-bonded verdazyl radical:hydroquinone molecular solid. J Am Chem Soc. 2001 Jul 25;123(29):7154-9. doi: 10.1021/ja010725i. PMID: 11459496.
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Catalytic Activities of CuSO(4)/Al(2)O(3) in Dehydrogenation of Arenes by Dioxygen.

The Journal of organic chemistry

Sakamoto T, Yonehara H, Pac C.
PMID: 11671703
J Org Chem. 1997 May 16;62(10):3194-3199. doi: 10.1021/jo961377j.

The oxidation reactions of hydroquinones, 2-naphthols, or 2,6-di-tert-butylphenol efficiently occurred by catalysis with alumina-supported copper(II) sulfate to give the corresponding benzoquinones, 1,1'-bi-2-naphthols, and 4,4'-diphenoquinone, respectively, in good yields. The synthetic potentiality of the catalytic reactions was demonstrated by easy...

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Sakamoto T, Yonehara H, Pac C. Catalytic Activities of CuSO(4)/Al(2)O(3) in Dehydrogenation of Arenes by Dioxygen. J Org Chem. 1997;62(10):3194-3199doi: 10.1021/jo961377j.
Sakamoto, T., Yonehara, H., & Pac, C. (1997). Catalytic Activities of CuSO(4)/Al(2)O(3) in Dehydrogenation of Arenes by Dioxygen. The Journal of organic chemistry, 62(10), 3194-3199. https://doi.org/10.1021/jo961377j
Sakamoto, Takaaki, et al. "Catalytic Activities of CuSO(4)/Al(2)O(3) in Dehydrogenation of Arenes by Dioxygen." The Journal of organic chemistry vol. 62,10 (1997): 3194-3199. doi: https://doi.org/10.1021/jo961377j
Sakamoto T, Yonehara H, Pac C. Catalytic Activities of CuSO(4)/Al(2)O(3) in Dehydrogenation of Arenes by Dioxygen. J Org Chem. 1997 May 16;62(10):3194-3199. doi: 10.1021/jo961377j. PMID: 11671703.
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Reactions of Primary and Secondary Amines with Substituted Hydroquinones: Nuclear Amination, Side-Chain Amination, and Indolequinone Formation.

The Journal of organic chemistry

Chakraborty M, McConville DB, Niu Y, Tessier CA, Youngs WJ.
PMID: 11672419
J Org Chem. 1998 Oct 16;63(21):7563-7567. doi: 10.1021/jo980541v.

No abstract available.

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Chakraborty M, McConville DB, Niu Y, et al. Reactions of Primary and Secondary Amines with Substituted Hydroquinones: Nuclear Amination, Side-Chain Amination, and Indolequinone Formation. J Org Chem. 1998;63(21):7563-7567doi: 10.1021/jo980541v.
Chakraborty, M., McConville, D. B., Niu, Y., Tessier, C. A., & Youngs, W. J. (1998). Reactions of Primary and Secondary Amines with Substituted Hydroquinones: Nuclear Amination, Side-Chain Amination, and Indolequinone Formation. The Journal of organic chemistry, 63(21), 7563-7567. https://doi.org/10.1021/jo980541v
Chakraborty, Manisha, et al. "Reactions of Primary and Secondary Amines with Substituted Hydroquinones: Nuclear Amination, Side-Chain Amination, and Indolequinone Formation." The Journal of organic chemistry vol. 63,21 (1998): 7563-7567. doi: https://doi.org/10.1021/jo980541v
Chakraborty M, McConville DB, Niu Y, Tessier CA, Youngs WJ. Reactions of Primary and Secondary Amines with Substituted Hydroquinones: Nuclear Amination, Side-Chain Amination, and Indolequinone Formation. J Org Chem. 1998 Oct 16;63(21):7563-7567. doi: 10.1021/jo980541v. PMID: 11672419.
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Synthesis of novel quinone boronic ester derivatives via a highly regioselective Cr-mediated benzannulation reaction and their application in Pd-catalyzed coupling processes.

The Journal of organic chemistry

Davies MW, Johnson CN, Harrity JP.
PMID: 11348140
J Org Chem. 2001 May 18;66(10):3525-32. doi: 10.1021/jo010098f.

This paper describes the synthesis and reactivity of a novel class of quinone boronic esters. These compounds are prepared utilizing a highly regioselective Dötz annulation of Fischer carbene complexes with alkynylboronates. All substrates studied to date provided a single...

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Davies MW, Johnson CN, Harrity JP. Synthesis of novel quinone boronic ester derivatives via a highly regioselective Cr-mediated benzannulation reaction and their application in Pd-catalyzed coupling processes. J Org Chem. 2001;66(10):3525-32doi: 10.1021/jo010098f.
Davies, M. W., Johnson, C. N., & Harrity, J. P. (2001). Synthesis of novel quinone boronic ester derivatives via a highly regioselective Cr-mediated benzannulation reaction and their application in Pd-catalyzed coupling processes. The Journal of organic chemistry, 66(10), 3525-32. https://doi.org/10.1021/jo010098f
Davies, M W, et al. "Synthesis of novel quinone boronic ester derivatives via a highly regioselective Cr-mediated benzannulation reaction and their application in Pd-catalyzed coupling processes." The Journal of organic chemistry vol. 66,10 (2001): 3525-32. doi: https://doi.org/10.1021/jo010098f
Davies MW, Johnson CN, Harrity JP. Synthesis of novel quinone boronic ester derivatives via a highly regioselective Cr-mediated benzannulation reaction and their application in Pd-catalyzed coupling processes. J Org Chem. 2001 May 18;66(10):3525-32. doi: 10.1021/jo010098f. PMID: 11348140.
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Redox reactions on columns.

Talanta

Belcher R, Majer JR, Roberts GA.
PMID: 18960226
Talanta. 1967 Nov;14(11):1245-51. doi: 10.1016/0039-9140(67)80201-7.

In a study of redox reactions on columns, the work of Cerrai and Testa has been extended. It has been shown that insolubility of the redox compound is the most important factor and that adsorptive forces play little or...

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Belcher R, Majer JR, Roberts GA. Redox reactions on columns. Talanta. 1967;14(11):1245-51doi: 10.1016/0039-9140(67)80201-7.
Belcher, R., Majer, J. R., & Roberts, G. A. (1967). Redox reactions on columns. Talanta, 14(11), 1245-51. https://doi.org/10.1016/0039-9140(67)80201-7
Belcher, R, et al. "Redox reactions on columns." Talanta vol. 14,11 (1967): 1245-51. doi: https://doi.org/10.1016/0039-9140(67)80201-7
Belcher R, Majer JR, Roberts GA. Redox reactions on columns. Talanta. 1967 Nov;14(11):1245-51. doi: 10.1016/0039-9140(67)80201-7. PMID: 18960226.
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Electronic transport investigation of redox-switching of azulenequinones/hydroquinones via first-principles studies.

Physical chemistry chemical physics : PCCP

Haidar EA, Tawfik SA, Stampfl C, Hirao K, Yoshizawa K, El-Demerdash SH, Nakajima T, El-Nahas AM.
PMID: 31378789
Phys Chem Chem Phys. 2019 Aug 15;21(32):17859-17867. doi: 10.1039/c9cp03233a.

The redox switching of non-alternant azulenequinone/hydroquinone molecules is investigated using density functional theory and the nonequilibrium Green's function. We examined the electronic transport properties of these molecules when subtended between gold electrodes. The results indicated that the reduction of...

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Haidar EA, Tawfik SA, Stampfl C, et al. Electronic transport investigation of redox-switching of azulenequinones/hydroquinones via first-principles studies. Phys Chem Chem Phys. 2019;21(32):17859-17867doi: 10.1039/c9cp03233a.
Haidar, E. A., Tawfik, S. A., Stampfl, C., Hirao, K., Yoshizawa, K., El-Demerdash, S. H., Nakajima, T., & El-Nahas, A. M. (2019). Electronic transport investigation of redox-switching of azulenequinones/hydroquinones via first-principles studies. Physical chemistry chemical physics : PCCP, 21(32), 17859-17867. https://doi.org/10.1039/c9cp03233a
Haidar, El-Abed, et al. "Electronic transport investigation of redox-switching of azulenequinones/hydroquinones via first-principles studies." Physical chemistry chemical physics : PCCP vol. 21,32 (2019): 17859-17867. doi: https://doi.org/10.1039/c9cp03233a
Haidar EA, Tawfik SA, Stampfl C, Hirao K, Yoshizawa K, El-Demerdash SH, Nakajima T, El-Nahas AM. Electronic transport investigation of redox-switching of azulenequinones/hydroquinones via first-principles studies. Phys Chem Chem Phys. 2019 Aug 15;21(32):17859-17867. doi: 10.1039/c9cp03233a. PMID: 31378789.
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Construction of Highly Functionalized Xanthones via Rh-Catalyzed Cascade C-H Activation/.

Organic letters

Nale SD, Maiti D, Lee YR.
PMID: 33719464
Org Lett. 2021 Apr 02;23(7):2465-2470. doi: 10.1021/acs.orglett.1c00391. Epub 2021 Mar 10.

A facile and efficient strategy for obtaining functionalized and multihydroxylated xanthones via Rh catalysis under redox-neutral conditions is developed. Diverse salicylaldehydes bearing heterocycles, aromatics, and fused aromatics can be rapidly coupled with 1,4-benzoquinones or 1,4-hydroquinones to afford valuable xanthones...

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Nale SD, Maiti D, Lee YR. Construction of Highly Functionalized Xanthones via Rh-Catalyzed Cascade C-H Activation/. Org Lett. 2021;23(7):2465-2470doi: 10.1021/acs.orglett.1c00391.
Nale, S. D., Maiti, D., & Lee, Y. R. (2021). Construction of Highly Functionalized Xanthones via Rh-Catalyzed Cascade C-H Activation/. Organic letters, 23(7), 2465-2470. https://doi.org/10.1021/acs.orglett.1c00391
Nale, Sagar D, et al. "Construction of Highly Functionalized Xanthones via Rh-Catalyzed Cascade C-H Activation/." Organic letters vol. 23,7 (2021): 2465-2470. doi: https://doi.org/10.1021/acs.orglett.1c00391
Nale SD, Maiti D, Lee YR. Construction of Highly Functionalized Xanthones via Rh-Catalyzed Cascade C-H Activation/. Org Lett. 2021 Apr 02;23(7):2465-2470. doi: 10.1021/acs.orglett.1c00391. Epub 2021 Mar 10. PMID: 33719464.
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An Assay to Determine NAD(P)H: Quinone Oxidoreductase Activity in Cell Extracts from .

Bio-protocol

Battu A, Purushotham R, Kaur R.
PMID: 34859125
Bio Protoc. 2021 Nov 05;11(21):e4210. doi: 10.21769/BioProtoc.4210. eCollection 2021 Nov 05.

Flavodoxin-like proteins (Fld-LPs) are an important constituent of the oxidative stress defense system in several organisms and highly conserved from bacteria to humans. These proteins possess NAD(P)H:quinone oxidoreductase activity and convert quinones to hydroquinones through two-electron reduction, using NAD(P)H...

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Battu A, Purushotham R, Kaur R. An Assay to Determine NAD(P)H: Quinone Oxidoreductase Activity in Cell Extracts from . Bio Protoc. 2021;11(21):e4210doi: 10.21769/BioProtoc.4210.
Battu, A., Purushotham, R., & Kaur, R. (2021). An Assay to Determine NAD(P)H: Quinone Oxidoreductase Activity in Cell Extracts from . Bio-protocol, 11(21), e4210. https://doi.org/10.21769/BioProtoc.4210
Battu, Anamika, et al. "An Assay to Determine NAD(P)H: Quinone Oxidoreductase Activity in Cell Extracts from ." Bio-protocol vol. 11,21 (2021): e4210. doi: https://doi.org/10.21769/BioProtoc.4210
Battu A, Purushotham R, Kaur R. An Assay to Determine NAD(P)H: Quinone Oxidoreductase Activity in Cell Extracts from . Bio Protoc. 2021 Nov 05;11(21):e4210. doi: 10.21769/BioProtoc.4210. eCollection 2021 Nov 05. PMID: 34859125; PMCID: PMC8595420.
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Adociasulfates 1, 7, and 8: New Bioactive Hexaprenoid Hydroquinones from the Marine Sponge Adocia sp. .

The Journal of organic chemistry

Kalaitzis JA, de Almeida Leone P, Harris L, Butler MS, Ngo A, Hooper JN, Quinn RJ.
PMID: 11674623
J Org Chem. 1999 Jul 23;64(15):5571-5574. doi: 10.1021/jo990404d.

Adociasulfate 1 (1), adociasulfate 7 (2), and adociasulfate 8 (3), which are inhibitors of proton pump activity in hen bone-derived membrane vesicles, were isolated from an extract of the sponge Adocia sp. (Chalinidae). Structure elucidation by 2D-NMR spectroscopy revealed...

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Kalaitzis JA, de Almeida Leone P, Harris L, et al. Adociasulfates 1, 7, and 8: New Bioactive Hexaprenoid Hydroquinones from the Marine Sponge Adocia sp. . J Org Chem. 1999;64(15):5571-5574doi: 10.1021/jo990404d.
Kalaitzis, J. A., de Almeida Leone, P., Harris, L., Butler, M. S., Ngo, A., Hooper, J. N., & Quinn, R. J. (1999). Adociasulfates 1, 7, and 8: New Bioactive Hexaprenoid Hydroquinones from the Marine Sponge Adocia sp. . The Journal of organic chemistry, 64(15), 5571-5574. https://doi.org/10.1021/jo990404d
Kalaitzis, John A., et al. "Adociasulfates 1, 7, and 8: New Bioactive Hexaprenoid Hydroquinones from the Marine Sponge Adocia sp. ." The Journal of organic chemistry vol. 64,15 (1999): 5571-5574. doi: https://doi.org/10.1021/jo990404d
Kalaitzis JA, de Almeida Leone P, Harris L, Butler MS, Ngo A, Hooper JN, Quinn RJ. Adociasulfates 1, 7, and 8: New Bioactive Hexaprenoid Hydroquinones from the Marine Sponge Adocia sp. . J Org Chem. 1999 Jul 23;64(15):5571-5574. doi: 10.1021/jo990404d. PMID: 11674623.
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A Study of the Effect of Inhibitors of the Animal Sarcoplasmic/Endoplasmic Reticulum-Type Calcium Pumps on the Primary Ca2+-ATPases of Red Beet.

Plant physiology

Thomson LJ, Hall JL, Williams LE.
PMID: 12232168
Plant Physiol. 1994 Apr;104(4):1295-1300. doi: 10.1104/pp.104.4.1295.

The inhibitor sensitivity of the endoplasmic reticulum (ER) and plasma membrane (PM) calcium pumps of red beet (Beta vulgaris L.) were studied by measuring the ATP-driven accumulation of 45Ca2+ into isolated membrane vesicles. Both transporters were strongly inhibited by...

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Thomson LJ, Hall JL, Williams LE. A Study of the Effect of Inhibitors of the Animal Sarcoplasmic/Endoplasmic Reticulum-Type Calcium Pumps on the Primary Ca2+-ATPases of Red Beet. Plant Physiol. 1994;104(4):1295-1300doi: 10.1104/pp.104.4.1295.
Thomson, L. J., Hall, J. L., & Williams, L. E. (1994). A Study of the Effect of Inhibitors of the Animal Sarcoplasmic/Endoplasmic Reticulum-Type Calcium Pumps on the Primary Ca2+-ATPases of Red Beet. Plant physiology, 104(4), 1295-1300. https://doi.org/10.1104/pp.104.4.1295
Thomson, L. J., et al. "A Study of the Effect of Inhibitors of the Animal Sarcoplasmic/Endoplasmic Reticulum-Type Calcium Pumps on the Primary Ca2+-ATPases of Red Beet." Plant physiology vol. 104,4 (1994): 1295-1300. doi: https://doi.org/10.1104/pp.104.4.1295
Thomson LJ, Hall JL, Williams LE. A Study of the Effect of Inhibitors of the Animal Sarcoplasmic/Endoplasmic Reticulum-Type Calcium Pumps on the Primary Ca2+-ATPases of Red Beet. Plant Physiol. 1994 Apr;104(4):1295-1300. doi: 10.1104/pp.104.4.1295. PMID: 12232168; PMCID: PMC159293.
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Showing 1 to 12 of 68 entries