P-Spiro chiral diaminodioxaphosphonium ion discriminates the enantiofaces of α-halo and alkoxy carboxylic acid-derived ketene disilyl acetals by the recognition of the electronic difference between two substituents of the ketene disilyl acetal in the proton-transfer event.
P-Spiro手性二
氨基二氧
磷离子通过识别酮二
硅基
乙酸酯的两个取代基之间的电子差异,在质子转移事件中区分α-卤代和烷氧基
羧酸衍生的酮二
硅基
乙酸酯的对映面。