An enantioselective synthesis of herbarumin III is described employing Jacobsen's hydrolytic kinetic resolution and Sharpless asymmetric dihydroxylation as the key steps. (c) 2007 Published by Elsevier Ltd.
An enantioselective synthesis of herbarumin III is described employing Jacobsen's hydrolytic kinetic resolution and Sharpless asymmetric dihydroxylation as the key steps. (c) 2007 Published by Elsevier Ltd.
Enantio- and Diastereoselective Synthesis of 1,5-<i>syn</i>-(<i>Z</i>)-Amino Alcohols via Imine Double Allylboration: Synthesis of <i>trans</i>-1,2,3,6-Tetrahydropyridines and Total Synthesis of Andrachcine
作者:Christophe Allais、William R. Roush
DOI:10.1021/acs.orglett.7b00995
日期:2017.5.19
A stereoselective synthesis of trans-1,2,3,6-tetrahydropyridines 8 is described. This synthesis proceeds via intramolecular Mistunobu reactions of 1,5-syn-(Z)-amino alcohols 7, which were prepared by a highly diastereo- and enantioselective double-allylboration reaction of aldehyde 5 and silylimine 6. The chiral bifunctional γ-borylallylborane 9E was generated in situ by hydroboration of allene 3 with
Tandem asymmetric allylboration–alkene metathesis: a novel strategy for the synthesis of trans-disubstituted homoallylic alcohols
作者:Anthony G. M. Barrett、Jennifer C. Beall、Vernon C. Gibson、Matthew R. Giles、Gary L. P. Walker
DOI:10.1039/cc9960002229
日期:——
Tandem use of Brown's asymmetric allylboration technology and crossed-alkene metathesis provides exclusively trans-disubstituted homoallylic alcohols in good yields.