A Photoinduced, Benzyne Click Reaction
Organic Letters2014Vol. 16(7), pp. 2003–2005
Citations Over TimeTop 10% of 2014 papers
Adam W. Gann, Jon W. Amoroso, Vincent J. Einck, Walter P. Rice, James J. Chambers, Nathan A. Schnarr
Abstract
The [3 + 2] cycloaddition of azides and alkynes has proven invaluable across numerous scientific disciplines for imaging, cross-linking, and site-specific labeling among many other applications. We have developed a photoinitiated, benzyne-based [3 + 2] cycloaddition that is tolerant of a variety of functional groups as well as polar, protic solvents. The reaction is complete on the minute time scale using a single equivalent of partner azide, and the benzyne photoprecursor is stable for months under ambient light at room tempurature. Herein we report the optimization and scope of the photoinitiated reaction as well as characterization of the cycloaddition products.
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