2H-Pyrazol-3-ylamines as precursors for the synthesis of polyfunctionally substituted pyrazolo[1,5-a]pyrimidines
作者:Hany Fakhry Anwar、Daisy Hanna Fleita、Heinz Kolshorn、Herbert Meier、Mohamed Hilmy Elnagdi
DOI:10.3998/ark.5550190.0007.f16
日期:——
Substituted aminopyrazoles (5a-d) were synthesized and reacted with bidentate electrophiles to afford pyrazolo[1,5-a]pyrimidines. The regioorientation of reagents has been determined by (N, H) HMBC measurements as well as an X-ray crystal structure determination.
合成取代的氨基吡唑 (5a-d) 并与双齿亲电试剂反应得到吡唑并 [1,5-a] 嘧啶。试剂的区域取向已通过 (N, H) HMBC 测量以及 X 射线晶体结构测定确定。