KRUSE C. G.; BROEKHOF N. L. J. M.; WIJSMAN A.; GEN A. VAN DER, TETRAHEDRON LETT. <TELE-AY>, 1977, NO 10, 885-888
作者:KRUSE C. G.、 BROEKHOF N. L. J. M.、 WIJSMAN A.、 GEN A. VAN DER
DOI:——
日期:——
Highly Enantioselective Oxidations of Ketene Dithioacetals Leading to Trans Bis-sulfoxides
作者:Varinder K. Aggarwal、Rebecca M. Steele、Ritmaleni、Juliet K. Barrell、Ian Grayson
DOI:10.1021/jo034032r
日期:2003.5.1
Sharpless-type asymmetric oxidation using (+)-DET, Ti(O(i)()Pr)(4), and cumene hydroperoxide to give the trans bis-sulfoxides 4a-f with essentially complete control of enantioselectivity and diastereoselectivity. The high enantioselectivity is a consequence of carrying out two asymmetric processes on the same substrate. However, this should lead to the formation of a small amount of the meso isomer but none was