Cyclobutanone reacts more rapidly with lithiatedphosphineoxides than with LDA and can be used under ‘internal quench’ conditions to investigate the stability and stereochemical integrity of some lithiatedphosphineoxides. The results are used in diastereomerically controlled additions to other ketones.
On the configurational stability of lithiated phosphine oxides
作者:Peter O'Brien、Stuart Warren
DOI:10.1016/0040-4039(95)01743-2
日期:1995.11
Two methods have been used to determine whether lithiatedphosphineoxides arc configurationally stable in THF at −78 °C: from both, we conclude that lithiatedphosphineoxides are not configurationally stable even on the timescale of reaction with internal electrophiles (eg Me3SiCl).