Výsledky vyhledávání - "John V. Greenhill"

An improved method for the N-alkylation of benzotriazole and 1,2,4-triazole

Autor: John V. Greenhill, Alan R. Katritzky, Wojciech Kuzmierkiewicz

Publikováno v: Recueil des Travaux Chimiques des Pays-Bas. 110:369-373

The N-alkylation of benzotriazole and 1,2,4-triazole with alkyl halides proceeds efficiently in the presence of sodium hydroxide in N,N-dimethylformamide (DMF).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2353314b0b0a3678f1c3fa2675f3d06e
https://doi.org/10.1002/recl.19911100903

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Aqueous High-Temperature Chemistry of Carbo- and Heterocycles. 21. Reactions of Sulfur-Containing Compounds in Supercritical Water at 460 .degree.C

Autor: John V. Greenhill, Michael Siskin, Richard A. Barcock, Alan R. Katritzky, William N. Olmstead, Marudai Balasubramanian

Publikováno v: Energy & Fuels. 8:498-506

Ten sulfur-containing compounds were selected to serve as models for the sulfur-containing impurities in heavy oils. They were subjected to aquathermolysis in water, 15% aqueous formic acid, and 15% aqueous sodium formate solution for 7 min at 460°

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::edbd0db566abb1b7d1e515f3399ab84d
https://doi.org/10.1021/ef00044a031

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Aqueous High-Temperature Chemistry of Carbo- and Heterocycles. 20. Reactions of Some Benzenoid Hydrocarbons and Oxygen-Containing Derivatives in Supercritical Water at 460 .degree.C

Autor: Marudai Balasubramanian, John V. Greenhill, William N. Olmstead, Alan R. Katritzky, Michael Siskin, Richard A. Barcock

Publikováno v: Energy & Fuels. 8:487-497

The reactions of a series of hydrocarbon- and oxygen-containing organic compounds have been studied in supercritical water, 15% aqueous formic acid, and 15% aqueous sodium formate at 460 ° C. For each substrate, a solution in cyclohexane at 460° C

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d212c51ad1f1380926fa0ba84f0b8a0d
https://doi.org/10.1021/ef00044a030

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NovelN-(Alkylthiomethyl)iminophosphoranes and Their Application to the Syntheses of New FunctionalizedN,S-Acetals

Autor: Jinlong Jiang, Alan R. Katritzky, John V. Greenhill

Publikováno v: Synthesis. 1994:107-110

Reaction of thiolates with (1-triphenylphosphorylideneaminomethyl)benzotriazole (betmip, 1) gave novel N-(alkylthiomethyl)iminophosphoranes 3 which were transformed, without isolation and in high yields, to N-(alkylthiomethyl)benzalimines 4, N-(alkyl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc11cebc4ebcbb133d38e6c5c00a73ea
https://doi.org/10.1055/s-1994-25415

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Photochemical stability of biologically active compounds: V. Photochemical degradation of primaquine in an aqueous medium

Autor: John V. Greenhill, Tore Skjetne, Jan Karlsen, S Kristensen, Hanne Hjorth Tønnesen, Anne-Lise Grislingaas

Publikováno v: International Journal of Pharmaceutics. 100:15-23

Quinoline antimalarials are photochemically unstable. Several of these drugs cause toxic reactions which may be ascribed to the Photochemical degradation of the substances. The effect of light of wavelengths 320–600 nm on the aminoquinoline primaqu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a1cfcbfe4058261e22d914cff5dc25d0
https://doi.org/10.1016/0378-5173(93)90070-v

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Aqueous organic chemistry. 6. Reactivity of hydroxynaphthalenes

Autor: Marudai Balasubramanian, Stephen N. Vaughn, Alan R. Katritzky, Michael Siskin, Glen B. Brons, John V. Greenhill

Publikováno v: Energy & Fuels. 7:589-597

Hydroxyaromatics are abundant in lignite and subbituminous coals. Cleavage of ethers in coals generates additional hydroxyaromatics. Reduction of the carbonyl intermediates of these hydroxyaromatics in 15% formic acid or 15% sodium formate provides h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7022c34065fabbea3494764e8c43a3e7
https://doi.org/10.1021/ef00041a005

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ChemInform Abstract: 4-(Benzotriazol-1-yl)-6H-benzo(c)tetrazolo(1,5-e)(1,2,5)triazepine, a New Heterocyclic Ring System Formed by a Novel Benzotriazole Ring Opening

Autor: Peter J. Steel, Wei-Qiang Fan, Alan R. Katritzky, John V. Greenhill

Publikováno v: ChemInform. 22

Le compose du titre, dont la structure cristalline est donnee, est prepare via la decyclisation d'un groupe triazole present dans le 1-azido-1,2-bis[benzotriazol-1-yl]ethylene

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::80df0e709d434c6d26667a575555b025
https://doi.org/10.1002/chin.199125190

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