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Asymmetric Synthesis of cis-3,4-Disubstituted Chromans and Dihydrocoumarins via an Organocatalytic Michael Addition/ Hemiacetalization Reaction

โœ Scribed by Dieter Enders; Chuan Wang; Xuena Yang; Gerhard Raabe

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
187 KB
Volume
352
Category
Article
ISSN
1615-4150

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## Abstract To obtain disubstituted dihydrocoumarins, the domino products are oxidized with PCC or treated with triethylsilane and boron trifluoride etherate.