The present invention provides a one-pot method for synthesizing clomiphene (a mixture of the isomers cis-clomiphene and trans-clomiphene) utilizing a single solvent. In a preferred embodiment, the single solvent is dichloromethane (DCM, also known as methylene chloride). The present invention provides an improved method for synthesizing clomiphene and purifying clomiphene isomers.
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