Synthesis of 1,3,5-Trisubstituted Pyrazoles by the Cope-Type Hydroamination of 1,3-Dialkynes with Alkylhydrazines
作者:Xiaoqiang Yu、Ming Bao、Nan Huang、Xiujuan Feng、Yoshinori Yamamoto
DOI:10.1055/s-0034-1378660
日期:——
was developed. The reaction of 1,3-dialkynes with alkylhydrazines smoothly proceeded in dimethyl sulfoxide under suitable heating conditions to produce 1,3,5-trisubstituted pyrazoles in satisfactory to excellent yields. An efficient method to synthesize 1,3,5-trisubstituted pyrazoles was developed. The reaction of 1,3-dialkynes with alkylhydrazines smoothly proceeded in dimethyl sulfoxide under suitable
摘要 开发了一种有效的合成1,3,5-三取代吡唑的方法。1,3-二炔与烷基肼的反应在适当的加热条件下在二甲基亚砜中顺利进行,以令人满意的产率获得了1,3,5-三取代的吡唑。 开发了一种有效的合成1,3,5-三取代吡唑的方法。1,3-二炔与烷基肼的反应在适当的加热条件下在二甲基亚砜中顺利进行,以令人满意的产率获得了1,3,5-三取代的吡唑。