Three-component synthesis of <i>N</i>-naphthyl pyrazoles <i>via</i> Rh(<scp>iii</scp>)-catalyzed cascade pyrazole annulation and Satoh–Miura benzannulation
作者:Demao Chen、Liyun Zhou、Yunyun Liu、Jie-Ping Wan
DOI:10.1039/d3cc00649b
日期:——
pyrazoles has been realized by the direct three-component reactions of enaminones, aryl hydrazine hydrochlorides and internal alkynes via Rh(III) catalysis. The synthetic reactions employing simple substrates lead to simultaneous construction of dual cyclic moieties, including a pyrazole ring and a phenyl ring, via sequential formation of two C–N and three C–C bonds.
N-萘基吡唑的合成是通过烯胺酮、芳基肼盐酸盐和内炔烃在Rh( III )催化下的直接三组分反应实现的。使用简单底物的合成反应通过连续形成两个 C-N 键和三个 C-C键,导致同时构建双环部分,包括吡唑环和苯环。
Fluorescent Naphthyl- and Anthrylazoles from the Catalytic Coupling of Phenylazoles with Internal Alkynes through the Cleavage of Multiple CH Bonds