Anwendungsbreite der reduktiven Kupplung aromatischer Aldimin??Derivate mit niedervalenten Titan??Reagenzien zu 1, 2??Diarylethylendiaminen
C Betschart, B Schmidt, D Seebach
Index: Betschart, Claudia; Schmidt, Beat; Seebach, Dieter Helvetica Chimica Acta, 1988 , vol. 71, p. 1999 - 2021
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Citation Number: 65
Abstract
Besides the adducts from lithium amides to aromatic aldehydes, iminium salts, aminals, and N-silylimines of aromatic aldehydes are coupled by the black suspension obtained from TiCI, and Mg turnings in tetrahydrofuran (THF). The 1, 2-diarylethylenediamines with tertiary and primary amino groups thus obtained are formed with no or only moderate diastereoselectivity (products 4a-d (Scheme 2) and 5a-e (Scheme 3), respectively); the ...
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