The palladium-catalyzed cyclization of N-(2-bromobenzyl)- and N-(2-bromobenzoyl)-sulfoximines affords six-membered heterocycles in moderate to good yield. In both cases, the α-arylations of the sulfoximine methyl groups are catalyzed by combination of Pd(OAc)2 and rac-BINAP in the presence of a base such as Cs2CO3 or K2CO3.
N-(2-溴苄基)-和N-(2-溴苯甲酰基)-亚磺酰亚胺的钯催化环化以中等至良好的产率提供六元杂环。在两种情况下,在碱如Cs 2 CO 3或K 2 CO 3的存在下,Pd(OAc)2和rac -BINAP的组合都可催化亚砜亚胺甲基的α-芳基化反应。