The trapping reaction of 2a with a deuterium source
(D2O) furnished the corresponding R-deuterated phenylpropylene
oxide in a good yield after distillation (77%, >
98% D): the reaction took place with complete retention
of configuration at the R-carbon (dr >98:2, ee >98%),16
thus indicating that 2a is also configurationally stable
(Scheme 1).