Enantioselective deprotonation of 8-oxabicyclo[3.2.1]octan-3-one systems using homochiral lithium amide bases
作者:Barry J. Bunn、Paul J. Cox、Nigel S. Simpkins
DOI:10.1016/s0040-4020(01)80520-2
日期:1993.1
The asymmetric transformation of oxabicyclic ketones 6 and 7 into non-racemic enol silanes 12 (88% ee) and 10 (85% ee), respectively, was achieved using the homochiral lithiumamide base 4. Conversion of 10 into a known key intermediate 15 for C-nucleoside synthesis was possible in a highly efficient two step sequence.
Bunn, Barry J.; Simpkins, Nigel S.; Spavold, Zoe, Journal of the Chemical Society. Perkin transactions I, 1993, # 24, p. 3113 - 3116
作者:Bunn, Barry J.、Simpkins, Nigel S.、Spavold, Zoe、Crimmin, Michael J.
DOI:——
日期:——
Alkene epoxidation catalyzed by bicyclo[3.2.1]octan-3-ones: effects of structural modifications on catalyst efficiency and epoxidation enantioselectivity
作者:Alan Armstrong、Barry R Hayter、William O Moss、Jonathan R Reeves、J.Steven Wailes
DOI:10.1016/s0957-4166(00)00170-1
日期:2000.6
Several 2-substituted bicyclo[3.2. 1]octan-3-ones are prepared and have been tested as catalysts for alkene epoxidation by Oxone. (C) 2000 Elsevier Science Ltd. All rights reserved.