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Published January 15, 1996 | public
Journal Article

Efficient Synthesis of Photolabile Alkoxy Benzoin Protecting Groups

Abstract

An effective implementation of the Corey-Seebach dithiane addition for the synthesis of photolabile alkoxy benzoin adducts is reported. The method allows for the facile synthesis of photolabile 3′,5′-dimethoxybenzoin protected compounds in near quantitative yield and is general in that it can be used for the synthesis of both symmetrical and unsymmetrical benzoins. Importantly, the dithiane intermediate reported is a versatile starting material for the synthesis of many photolabile compounds and should serve as a useful protecting group in complex synthetic schemes requiring multiple orthogonal protecting groups.

Additional Information

© 1996 Elsevier Science Ltd. Received in USA 7 September 1995; revised 7 November 1995; accepted 10 November 1995. We thank Prof. E. M. Carreira for helpful discussions and critical reading of this manuscript. This work was supported by NIH grant GM 22432 from the National Institute of General Medical Sciences, U.S. Public Health Service. Contribution number 9139.

Additional details

Created:
August 20, 2023
Modified:
October 20, 2023