C–N Bond Activation of N,N′-Dialkylacylhydrazines Mediated by β-Fragmentation of Nitrogen-Centered Radical
摘要:
In the presence of tert-butylnitrite and dioxygen, the C-N bond activation of N,N'-dialkylacylhydrazines was realized, providing a series of N-nitrosoacylhydrazines in high yields. Different from transition-metal and other radical catalysis, this reaction is mediated by a nitrogen-centered radical of the corresponding N,N'-dialkylacylhydrazine and further beta-fragmentation, which was supported by the mechanistic study.
An efficient multicomponent one-pot reaction was developed for the synthesis of ,-disubstituted homoallylic hydrazides by treating ketones, acylhydrazines and allyl bromide with tin powder in tetrahydrofuran under reflux. The reaction proceeds smoothly without any catalyst under mild conditions to give the corresponding products in high yields.
Yeung; Knaus, European Journal of Medicinal Chemistry, 1986, vol. 21, # 3, p. 181 - 185
作者:Yeung、Knaus
DOI:——
日期:——
YEUNG, J. M.;KNAUS, E. E., EUR. J. MED. CHEM., 1986, 21, N 3, 181-185
作者:YEUNG, J. M.、KNAUS, E. E.
DOI:——
日期:——
QUATERNARY SALTS OF PARA-DIALKYLAMINO BENZAMIDE DERIVATIVES