名称:
Easily accessible symmetrically and unsymmetrically bridge disubstituted tetrahydroxycalix[4]arenes in advantageous trans-cone conformation
摘要:
A new approach to symmetrically and unsymmetrically bridge disubstituted tetrahydroxycalix[4]arenes is reported involving high yields and facile workup of the products. Strong hydrogen bonds at the lower rim force the compounds to adopt the cone conformation with a trans arrangement of the bridge substituents. (C) 2013 Elsevier Ltd. All rights reserved.
DOI:
10.1016/j.tetlet.2013.03.101