Enantioselective protonation of α-hetero carboxylic acid-derived ketene disilyl acetals under chiral ionic Brønsted acid catalysis.
نویسندگان
چکیده
Highly enantioselective protonation of α-halo and alkoxy carboxylic acid-derived ketene disilyl acetals is achieved by using P-spiro chiral diaminodioxaphosphonium barfate as a Brønsted acid catalyst, where the enantiofacial discrimination by the catalyst mainly stems from the recognition of the electronic difference between two substituents on the ketene disilyl acetal.
منابع مشابه
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ورودعنوان ژورنال:
- Chemical communications
دوره 50 88 شماره
صفحات -
تاریخ انتشار 2014