A very convenient route for the acylation of alcohols is provided by using a Bi(OTf)3 catalyst [Eq. (1)]. In this protocol hindered and functionalized alcohols are acylated at 25°C, and solvents can be employed without purification. R=primary, secondary, tertiary alkyl, aryl; R′=Me, Ph, tBu.
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Orita et al. (2000) studied this question.
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