1,3-Diketones from Acid Chlorides and Ketones: A Rapid and General One-Pot Synthesis of Pyrazoles
作者:Stephen T. Heller、Swaminathan R. Natarajan
DOI:10.1021/ol060570p
日期:2006.6.1
[reaction: see text] 1,3-Diketones were synthesized directly from ketones and acid chlorides and were then converted in situ into pyrazoles by the addition of hydrazine. This method is extremely fast, general, and chemoselective, allowing for the synthesis of previously inaccessible pyrazoles and synthetically demanding pyrazole-containing fused rings.
[反应:见正文] 1,3-二酮直接由酮和酰氯合成,然后通过加入肼原位转化为吡唑。该方法非常快速,通用且具有化学选择性,可以合成以前无法获得的吡唑和需要合成的含吡唑的稠环。