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|Title:||Enantioselective synthesis of densely functionalized pyranochromenes via an unpredictable cascade Michael-oxa-Michael-tautomerization sequence|
|Source:||Ren, Q., Gao, Y., Wang, J. (2010-12-10). Enantioselective synthesis of densely functionalized pyranochromenes via an unpredictable cascade Michael-oxa-Michael-tautomerization sequence. Chemistry - A European Journal 16 (46) : 13594-13598. ScholarBank@NUS Repository. https://doi.org/10.1002/chem.201002490|
|Abstract:||A surprising example of enantioselective cascade Michael-oxa-Michael- tautomerization reactions of malononitrile and benzylidenechromanones has been developed. In this case, malononitrile functions as both nucleophile and electrophile. Meanwhile, a simple bifunctional indane amine-thiourea catalyst has been discovered to promote this process to afford high yields (up to 99%) and high to excellent enantiomeric excesses (81-99% ee). Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.|
|Source Title:||Chemistry - A European Journal|
|Appears in Collections:||Staff Publications|
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