Highly efficient resolution of benzopyrano[4,3-c]isoxazolidine derivatives: Versatile chiral auxiliaries for asymmetric alkylation
摘要:
Benzopyrano[4,3-c]isoxazolidine derivatives, newly developed chiral auxiliaries for asymmetric alkylation, were synthesized and resolved in a unique manner. Resolution could be executed so efficiently that both enantiomers were obtained with a single resolving reagent in excellent yields.