Enantioselective preparation of 2-substituted- 1,3-dithiane 1-oxides using modified sharpless sulphoxidation procedures
作者:Philip C. Bulman Page、Robin D. Wilkes、Emest S. Namwindwa、Michael J. Witty
DOI:10.1016/0040-4020(95)01029-7
日期:1996.2
carried out using modified Sharpless conditions to furnish the corresponding sulphoxides in optically enriched form. Deacylation of 2-acyl-1,3-dithiane 1-oxide derivatives allows the preparation of 2-alkyl-1,3-dithiane 1-oxides and the parent 1,3-dithiane 1-oxide itself in high enantiomeric excesses.
Page, Philip C.; McKenzie, Michael J.; Buckle, Derek R., Journal of the Chemical Society. Perkin transactions I, 1995, # 21, p. 2673 - 2676
作者:Page, Philip C.、McKenzie, Michael J.、Buckle, Derek R.
DOI:——
日期:——
Enantioselective synthesis of α-methyl carboxylic acids using a DiTOX chiral auxiliary
作者:Philip C Bulman Page、Michael J McKenzie、Steven M Allin、Sukhbinder S Klair
DOI:10.1016/s0040-4020(97)00837-5
日期:1997.9
Five α-methyl carboxylic acids have been prepared with high e.e.s using 1,3-dithiane 1-oxide (DiTOX) units as the stereocontrolling elements and sources of chirality.
Electrophilic Amination of Ketone Enolates Mediated by the DiTOX Asymmetric Building Block: Enantioselective Formal Synthesis of α-Aminoacids
作者:Philip C. Bulman Page、Michael J. McKenzie、Steven M. Allin、Derek R. Buckle
DOI:10.1016/s0040-4020(00)00923-6
日期:2000.12
Diastereoselective electrophilic amination of enolates derived from 2-acyl-1,3-dithiane 1-oxides is used as the key step for an enantioselective synthesis of two α-hydrazido carboxylic acids, well-known precursors of α-amino acids.