Article ID Journal Published Year Pages File Type
5272832 Tetrahedron Letters 2009 4 Pages PDF
Abstract

Synchronized stereocontrol of two planar-chiral units was accomplished by using crystallization-induced asymmetric transformation (CIAT) of cyclophane-type bridged bisnicotinate derivatives 5b and 7. After screening various linkers, (S)-2-amino-1-butanol and (S)-tert-leucinol were found to be the most effective for CIAT of the corresponding bridged bisnicotinate 5b and 7, respectively, whose diastereomeric ratio finally reached 97% and 88%, respectively.

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Physical Sciences and Engineering Chemistry Organic Chemistry
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