STRUCTURES OF BRIDGED CALIX[6]ARENES BEARING A BROMIDE FUNCTIONALITY IN THE CAVITY

Authors
SAIKI T GOTO K TOKITOH N GOTO M OKAZAKI R
Citation
T. Saiki et al., STRUCTURES OF BRIDGED CALIX[6]ARENES BEARING A BROMIDE FUNCTIONALITY IN THE CAVITY, Tetrahedron letters, 37(23), 1996, pp. 4039-4042
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
37
Issue
23
Year of publication
1996
Pages
4039 - 4042
Database
ISI
SICI code
0040-4039(1996)37:23<4039:SOBCBA>2.0.ZU;2-P
Abstract
The structures of bridged calix[6]arenes 1a and 1b were investigated. Whereas 1a was found to take a structure where the bridging unit lies below the calix[6]arene macroring with a cone conformation, its tetram ethyl ether 1b adopts the 1,2,3-alternate conformation with the centra l bromide functionality pointing into the cavity, as revealed by X-ray crystallographic analysis. (C) 1996 Elsevier Science Ltd.