Stereoselective Nickel(II)-Catalyzed Addition of Aryl Grignards to Diphenylacetylene in the Synthesis of Zuclomiphene
作者:Avedis Karadeolian、Michael Emmett、Fabio Souza、Andrew Chung、Peter Blazecka、Richard Le Sueur、Dineshkumar Patel、Yajun Zhao、Allan Rey、Stuart Green
DOI:10.1021/acs.oprd.1c00366
日期:2022.4.15
Stereoselective synthesis of zuclomiphene was developed using nickel-catalyzed addition of 4-fluorophenylmagnesium bromide to 1,2-diphenylacetylene, followed by quenching with a chlorinating reagent. Since the aryl fluoride addition and chlorination reactions occur consecutively in one pot, the cis orientation of the two phenyl groups of 1,2-diphenylacetylene is conserved, leading to the highly selective
使用镍催化将 4-氟苯基溴化镁添加到 1,2-二苯基乙炔中,然后用氯化试剂淬灭,开发了 zuclomiphene 的立体选择性合成。由于芳基氟化物的加成和氯化反应在一锅中连续发生,1,2-二苯乙炔的两个苯基的顺式取向是保守的,从而导致了高选择性合成zuclomiphene。格氏试剂的使用导致反应混合物中存在溴离子,从而导致形成珠氯米芬的溴类似物。然后探索替代路线来克服这个问题以产生高纯度的zuclomiphene。