摘要
采用芳香胺的Mannich碱亚硝化后再还原、环化的方法制备了3个吡唑类(Ⅳ_(a^c))和11个吡唑啉类(Ⅱ_(a^k))化合物,其中9个是未见报导的新化合物。所有化合物经红外、元素分析确证,对部分化合物的核磁、质谱作了报导。
Three pyrazoles and eleven pyrazolines are prepared by the reductive cyclization of nitrosated Mannich bases. So far, nine of them have not been reported in the literatures. All these compounds are confirmed by IR and element analysis. The NMR and MS of some of these compounds are given.
出处
《北京师范大学学报(自然科学版)》
CAS
CSCD
1990年第3期70-74,共5页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金
关键词
吡唑
吡唑啉
亚硝化
芳香胺
合成
pyrazole, pyrazoline, nitrosation, reductive cyclization, Mannich base