Lewis Base Activation of Lewis Acids: Development of a Lewis Base Catalyzed Selenolactonization
Organic Letters2007Vol. 9(19), pp. 3801–3804
Citations Over TimeTop 14% of 2007 papers
Abstract
The concept of Lewis base activation of Lewis acids has been applied to the selenolactonization reaction. Through the use of substoichiometric amounts of Lewis bases with "soft" donor atoms (S, Se, P) significant rate enhancements over the background reaction are seen. Preliminary mechanistic investigations have revealed the resting state of the catalyst as well as the significance of a weak Brønsted acid promoter.
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