The well-defined conformation of an N,N′-diarylurea allows a chiral sulfinyl substituent to influence diastereoselectivity in the formation of new stereogenic centres up to 14 bond lengths away.
N,N′-二芳基
脲的明确构象使得手性亚磺酰基取代基能够影响在新手性中心形成过程中的非对映选择性,最远可达14个键的长度之外。