Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 355, Issue 10, Pages 1989-1995Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201300281
Keywords
asymmetric catalysis; bifunctional catalysis; cascade reactions; Horner-Wadsworth-Emmons reaction; sulfa-Michael addition; thiochromenes
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Funding
- Indian Institute of Science, Bangalore
- Department of Science and Technology (DST), New Delhi [SR/FT/CS-90/2010]
- Council of Scientific and Industrial Research (CSIR), New Delhi [01(2505)/11/EMR-II]
- CSIR
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A catalytic enantioselective sulfa-Michael/Horner-Wadsworth-Emmons reaction cascade has been developed, taking advantage of phosphonate as an electrophilic activator and a traceless binding site. Using a chiral bifunctional urea derivative as the catalyst, a variety of aryl and heteroaryl substituted thiochromenes was obtained in excellent yield with a high level of enantioselectivity.
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