Rhodium-catalysed enantioselective synthesis of 4-arylchroman-2-ones

Reference:

Allen, J. C., Kociok-Kohn, G. and Frost, C. G., 2012. Rhodium-catalysed enantioselective synthesis of 4-arylchroman-2-ones. Organic and Biomolecular Chemistry, 10 (1), pp. 32-35.

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Official URL:

http://dx.doi.org/10.1039/c1ob06586f

Abstract

The rhodium-catalysed enantioselective 1,4-addition of organoboron reagents to arylidene Meldrum's acids as acceptors, allows convenient access to 4-arylchroman-2-ones with good to excellent levels of enantioselectivity. The use of silyl-protected dioxaborinanes as donors was found to be advantageous to achieving good yields of product under anhydrous conditions.

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