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Titolo:
Simultaneous reduction of the nitro group and the azide group in o-nitrophenylazide induced by the TiCl4/Sm system: a novel synthesis of 2,3-dihydro-1H-1,5-benzodiazepines
Autore:
Zhong, WH; Zhang, YM; Chen, XY;
Indirizzi:
Zhejiang Univ, Dept Chem, Hangzhou 310028, Peoples R China Zhejiang Univ Hangzhou Peoples R China 310028 ou 310028, Peoples R China Chinese Acad Sci, Organomet Chem Lab, Shanghai 200032, Peoples R China Chinese Acad Sci Shanghai Peoples R China 200032 200032, Peoples R China Hunan Jishou Univ, Dept Chem, Jishou 416000, Peoples R China Hunan Jishou Univ Jishou Peoples R China 416000 416000, Peoples R China
Titolo Testata:
TETRAHEDRON LETTERS
fascicolo: 1, volume: 42, anno: 2001,
pagine: 73 - 75
SICI:
0040-4039(20010101)42:1<73:SROTNG>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
LOW-VALENT TITANIUM; COUPLING REACTIONS; FACILE;
Keywords:
titanium tetrachloride; samarium; nitro group; azide; reductive cyclization; 2,3-dihydro-1H-1,5-benzodiazepine;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Zhang, YM Zhejiang Univ, Dept Chem, Campus Xixi, Hangzhou 310028, Peoples R China Zhejiang Univ Campus Xixi Hangzhou Peoples R China 310028 China
Citazione:
W.H. Zhong et al., "Simultaneous reduction of the nitro group and the azide group in o-nitrophenylazide induced by the TiCl4/Sm system: a novel synthesis of 2,3-dihydro-1H-1,5-benzodiazepines", TETRAHEDR L, 42(1), 2001, pp. 73-75

Abstract

o-Nitrophenylazide was treated with the low-valent titanium reagent derived from the TiCl4/Sm system to produce the intermediate 2 in situ, which wasa 'living' double-anion and reacted readily with ketones containing activemethyl or methylene groups to afford 2,3-dihydro-1H-1,5-benzodiazepines inmoderate to high yields under mild and neutral conditions. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 04:10:08