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Chiral calixarenes derived from resorcinol

✍ Scribed by Iwanek, Waldemar ;Mattay, Jochen

Book ID: 102367375
Publisher: John Wiley and Sons
Year: 1995
Tongue: English
Weight: 346 KB
Volume: 1995
Category: Article
ISSN: 0947-3440
DOI: 10.1002/jlac.1995199508199

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✦ Synopsis

Abstract

A new type of chiral resorc[4]arene is described. The formation of both enantiomers of 5 is controlled by the chirality of the amines used in the Mannich reaction leading to the 1,3‐oxazine ring anellated to the resorcarene moiety. At −50°C ee increases up to 90%. Both enantiomers can be easily purified to >98% ee by recrystallization. The structures were proved by standard methods including X‐ray analysis.

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