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Titolo:
Photochemical and thermal decomposition of diphenylamine diazonium salts
Autore:
Chen, JY; Zhao, C; Wang, RX; Cao, SG; Cao, WX;
Indirizzi:
Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China Peking Univ Beijing Peoples R China 100871 ijing 100871, Peoples R China
Titolo Testata:
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
fascicolo: 1-3, volume: 125, anno: 1999,
pagine: 73 - 78
SICI:
1010-6030(199908)125:1-3<73:PATDOD>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
ARENEDIAZONIUM IONS; METHANOL;
Keywords:
diphenylamine diazonium salt; substituted diphenylamine diazonium stilt; photochemical decomposition; thermal decomposition;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Cao, WX Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R ChinaPeking Univ Beijing Peoples R China 100871 0871, Peoples R China
Citazione:
J.Y. Chen et al., "Photochemical and thermal decomposition of diphenylamine diazonium salts", J PHOTOCH A, 125(1-3), 1999, pp. 73-78

Abstract

The photochemical and thermal decomposition of diphenylamine-4-diazonium salt (DDS), N-methyl diphenylamine-4-diazonium salt (NMDDS), 3-methoxy diphenylamine-4-diazonium salt (MDDS), carbazole-3-diazonium salt (CDS) in ethanol and N-methyl-2-nitrodiphenylamine-4-diazonium salt (MNDDS) in water werestudied. It was found that, in photochemical decomposition in ethanol, themajor products (>70% of the total product) obtained for DDS, CDS, NMDDS and NMDDS are diphenylamino-4-ethyl ether, carbazcle-3-ethyl ether and the corresponding substituted diphenylamino-4-ethyl ethers. In thermal decomposition, the diphenylamine (DA), carbazole (CZ) and substituted DA were obtained as only one product in each case. For the decomposition of MNDDS, which has a strong electron-withdrawing nitro group on benzene nuclear at the metasite of the diazonium group, the decomposition products are identical, both in photochemical and in thermal decomposition. The mechanisms of photochemical and thermal decomposition for DDS, CDS and substituted DDS are discussed. (C) 1999 Elsevier Science S.A. All rights reserved.

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Documento generato il 29/09/20 alle ore 07:43:33