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ChemInform Abstract: Highly Regioselective Addition of an Ester Enolate Equivalent to α,β-Unsaturated Ketones: Selective Formation of Both Isomers Derived from 1,2- and 1,4-Additions Using α-Stannyl Ester with Additives.

✍ Scribed by Makoto Yasuda; Yozo Matsukawa; Keishi Okamoto; Toshifumi Sako; Noriko Kitahara; Akio Baba

Publisher: John Wiley and Sons
Year: 2001
Weight: 37 KB
Volume: 32
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200106087

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ChemInform Abstract: Diverse Cycloaddition Chemistry Leading to Overall Michael Addition in the Reactions of 1,1-Bis(dimethylamino)-2,2-difluoroethene with α,β-Unsaturated Aldehydes, Ketones, Esters, and Nitriles.

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Diverse Cycloaddition Chemistry Leading to Overall Michael Addition in the Reactions of 1,1-Bis(dimethylamino)-2,2-difluoroethene with α,β-Unsaturated Aldehydes, Ketones, Esters, and Nitriles. -The freshly prepared difluoro ketene aminal (I) reacts with α,β-unsaturated aldehydes or ketones via [4 +