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A new chiral benzimidazolide is developed as a nonenzymatic acylating agent for enantioselective benzoylation of racemic alpha-amino esters. The process is highly efficient, which exhibits uniformly high enantioselectivity for alpha-amino esters with or without aryl substituents under mild reaction conditions. The chiral benzimidazolide is inexpensive and is easily accessible.
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Karnik et al. (2007) studied this question.
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