Inherently chiral calix[4]arenes via oxazoline directed ortholithiation: synthesis and probe of chiral space
作者:Simon A Herbert、Laura J van Laeren、Dominic C Castell、Gareth E Arnott
DOI:10.3762/bjoc.10.291
日期:——
The diastereoselective oxazoline-directed lithiation of calix[4]arenes is reported with diastereoselective ratios of greater than 100:1 in some instances. Notably, it has been found that the opposite diastereomer can be accessed via this approach merely through the choice of an alkyllithium reagent. The inherently chiral oxazoline calix[4]arenes have also been preliminarily examined as ligands in the