摘要:
Rh/DuanPhos-catalyzed asymmetric hydrogenation of challenging beta-acetylamino vinylsulfides has been developed; affording chiral beta-acetylamino, sulfides with high yield's and excellent ee's (up to, 99% ee). This novel methodology provides an efficient and' concise, synthetic route, to chiral beta-acetylamino sulfides. The potential utility of this protocol in the synthesis of Apremilast has also been disclosed.