Han WY, Wu ZJ, Zhang XM, Yuan WC. Enantioselective organocatalytic three-component Petasis reaction among salicylaldehydes, amines, and organoboronic acids.
Org Lett 2012;
14:976-9. [PMID:
22292670 DOI:
10.1021/ol203109a]
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Abstract
The catalytic enantioselective three-component Petasis reaction among salicylaldehydes, amines, and organoboronic acids with a newly designed thiourea-binol catalyst is presented. A broad range of alkylaminophenols can be obtained in good yield (up to 92%) and good to high enantioselectivity (up to 95% ee). A possible reaction pathway for this catalytic enantioselective Petasis reaction is tentatively proposed.
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