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Stéréochimie de (2S, 4S, 5R;2S, 4S, 5S)- et (2R, 4S, 5R;2R, 4S, 5S)-2-alkyl-1,3,4-triméthyl-5-phénylimidazolidines déterminée par RMN-−1H et -−13C

✍ Scribed by D. Tytgat; M. Gelbcke

Publisher
Wiley (John Wiley & Sons)
Year
2010
Weight
339 KB
Volume
99
Category
Article
ISSN
0037-9646

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✦ Synopsis

The condensation of (1 R,2S) or (lS,2S)-N,N'-dimethyI-l-phenylpropane-l 2-diamines with aldehydes gives respectively two diastereorneric 2-alkyl-l,3,4-trimethyI-S-phen limidazolidines. At thermodynamical equilibrium the major isomer in the erythro series is this one where t f ! e substituents at position 2 and 4 are "cis". In the threo series, the major isomer has the substituents at position 2 and 4 "trans".

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