An Efficient Synthesis of Oxa- and Aza-Condensed Tetrahydropyridines from Cyclic Enones
作者:Nilo Zanatta、Liana da Fernandes、Sinara München、Helena Coelho、Simone Amaral、Leonardo Fantinel、Hélio Bonacorso、Marcos Martins
DOI:10.1055/s-0029-1218779
日期:2010.7
A simple and efficient one-pot synthesis of tetrahydrooxazolo[3,2-a]pyridines and hexahydroimidazo[1,2-a]pyridines, and some related oxa- and aza-condensed tetrahydropyridines, from the reaction of 2-alkoxy-5-(trifluoroacetyl)-2,3-dihydro-2H-pyrans (cyclic enones) with amino alcohols and primary diamines, is reported. Products were isolated with high purity and in very good yields. tetrahydropyridines
一种简单有效的一锅合成方法,是通过2-烷氧基-5-的反应合成四氢恶唑并[3,2- a ]吡啶和六氢咪唑并[1,2- a ]吡啶,以及一些相关的氧杂和氮杂缩合的四氢吡啶。报道了具有氨基醇和伯二胺的(三氟乙酰基)-2,3-二氢-2 H-吡喃(环状烯酮)。分离出的产品具有很高的纯度,并且产率很高。 四氢吡啶-恶唑烷吡啶-咪唑并吡啶-二氢吡喃-环烯酮