1-Substituted 1,4,5,6-tetrahydropyridazines and 1-(N-substituted)-aminopyrrolidines from hydrazines and 2,5-dimethoxytetrahydrofuran
作者:Giancarlo Verardo、Nicoletta Toniutti、Angelo G. Giumanini
DOI:10.1016/s0040-4020(97)00142-7
日期:1997.3
N-Substituted 1,4,5,6-tetrahydropyridazines () can be prepared in a one pot procedure from a hydrazine and 2,5-dimethoxytetrahydrofuran () using NaBH4 in aqueous-THF acidic medium in fair yields. Variable amounts of two side products are also formed: hexahydropyridazines , likely produced by a route other than the direct reduction of , and 1-aminopyrrolidines . A direct reduction-N-reductive ethylation
Photooxidations of 1,1-dialkyl-2-arylhydrazines by single electron transfer
作者:Clotilde Ferroud、Guillaume Cocquet、Alain Guy
DOI:10.1016/s0040-4039(99)00922-3
日期:1999.7
The oxidation of substituted hydrazines through monoelectronic transfer leads regio- and stereoselectively with good yields to alpha-hydrazinonitriles under mild conditions. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.