Journal of Organic Chemistry p. 5639 - 5646 (1990)
Update date:2022-08-04
Topics:
Loon, Jan-Dirk van
Arduini, Arturo
Coppi, Laura
Verboom, Willem
Pochini, Andrea
et al.
Methods are described for the selective diametrical functionalization of calix<4>arenes at the upper rim, either by the selective removal of the p-tert-butyl groups and subsequent substitution at the free phenol rings or by selective reactions at the phenol rings of dialkoxycalix<4>arenes without the tert-butyl groups.This includes selective mercuration and the synthesis of 5,17-di-tert-butyl-26,28-dimethoxy-11,23-diphenylcalix<4>arene (13), of which the crystal structure is described.The first synthesis of macrocyclic diquinones derived from calix<4>arenes (calix<4>diquinones) is described.
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Doi:10.1021/jm00172a024
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