]glycine («chiral glycine») were synthesized in good yield with high deuterium incorporation and ee's of 82-86% by two different routes. Photolysis of optically active oxazolidine carbene chromium complexes and lithiation-deuteration of optically active α-oxazolidinone acetic esters were carried out. The stereoselectivities of the reactions of ketenes and chromium-bound ketenes with methanol-d were compared
(S)- 和 (R)-[2- 2 H i ] 甘
氨酸(«手性甘
氨酸»)通过两种不同的途径以高
氘掺入和 82-86% 的 ee 产率合成。进行了旋光性
恶唑烷卡宾
铬配合物的光解和旋光性 α-
恶唑烷酮
乙酸酯的
锂化-
氘化。比较
乙烯酮和
铬键
乙烯酮与
甲醇-d反应的立体选择性