Bis-Sulfamyl Imines: Potent Substrates for Asymmetric Additions of Arylboroxines under Rhodium Catalysis
作者:Rosemary Crampton、Simon Woodward、Martin Fox
DOI:10.1002/adsc.201000838
日期:2011.4.18
Bis‐sulfamyl imines are shown to be potentially ideal substrates for rhodium‐catalysed asymmetric additions of arylboron nucleophiles as they show: (i) near perfect enantioselectivities (11 examples, 98–99+% ee), (ii) good to excellent diastereoselectivities (10–32:1 rac:meso), and (iii) high functional group tolerance in removal of the low molecular weight protecting group via mild heating in aqueous
双磺胺基亚胺被证明是铑催化的芳基硼亲核试剂不对称加成的潜在理想底物,因为它们显示:(i)接近完美的对映选择性(11个例子,98–99 +%ee),(ii)良好至优异的非对映选择性( 10-32:1外消旋:内消旋),并在除去低分子量的保护基团(iii)的高的官能团耐受性通过温和加热在水性吡啶。