Facile One-Pot Transformation of Primary Alcohols into 3-Aryl- and 3-Alkyl-isoxazoles and -pyrazoles
作者:Eiji Kobayashi、Hideo Togo
DOI:10.1055/s-0039-1690102
日期:2019.10
Abstract Various primary alcohols were smoothly transformed into 3-aryl- and 3-alkylisoxazoles in good yields in one pot by successive treatment with PhI(OAc)2 in the presence of TEMPO, NH2OH, and then NCS, followed by reaction with alkynes in the presence of Et3N. Similarly, various primary alcohols were smoothly transformed into 3-aryl- and 3-alkylpyrazoles in good yields in one pot by successive
抽象的 通过在TEMPO,NH 2 OH和NCS的存在下依次用PhI(OAc)2连续处理,然后与炔烃反应,在一个锅中将各种伯醇顺利地转化成高产率的3-芳基-和3-烷基异恶唑。的Et存在下3 N.类似地,多种伯醇被顺利转化为3-芳基-和3- alkylpyrazoles以良好的收率以一锅煮的通过用岛(OAC)连续处理2在TEMPO,PhNHNH存在2,然后NCS和癸基甲基硫醚,然后在Et 3存在下与炔烃反应因此,3-芳基-和3-烷基异唑和3-芳基和3-烷基吡唑都可以在无过渡金属的条件下由易得的伯醇在一个罐中制备。 通过在TEMPO,NH 2 OH和NCS的存在下依次用PhI(OAc)2连续处理,然后与炔烃反应,在一个锅中将各种伯醇顺利地转化成高产率的3-芳基-和3-烷基异恶唑。的Et存在下3 N.类似地,多种伯醇被顺利转化为3-芳基-和3- alkylpyrazoles以良好的收率以一锅煮的