Ultrasound treatment of dihydropyrrole derivatives with N-sulfenylphthalimides in the presence of base gave the corresponding N-sulfenyldihydropyrrole derivatives.
US4770806A
申请人:——
公开号:US4770806A
公开(公告)日:1988-09-13
Structural, Mechanistic, Spectroscopic, and Preparative Studies on the <i>Lewis</i>
Base Catalyzed, Enantioselective Sulfenofunctionalization of Alkenes
作者:Eduard Hartmann、Scott E. Denmark
DOI:10.1002/hlca.201700158
日期:2017.9
with the spectroscopic identification of putative thiiranium ion intermediates generated in the enantiodetermining step. The structural insights gleaned from these studies informed the design of new catalyst architectures to improve enantioselectivity. In addition, structural modification of the sulfenylating agents had a significant and salutary effect on the enantioselectivity of sulfenofunctionalization