Synthesis and structure of new cyclophanes containing benzofuran and benzene rings

Citation
Kk. Park et al., Synthesis and structure of new cyclophanes containing benzofuran and benzene rings, TETRAHEDR L, 41(9), 2000, pp. 1393-1396
Citations number
7
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
41
Issue
9
Year of publication
2000
Pages
1393 - 1396
Database
ISI
SICI code
0040-4039(20000226)41:9<1393:SASONC>2.0.ZU;2-6
Abstract
Macrocycles 2-3 are synthesized by reacting 2,4-dihydroxybenzophenone with alpha,alpha'-dibromo-p-xylene and then 1,6-diiodohexane. Photoirradiation o f 2 yields a new type of cyclophane 5 containing two benzo[b]furan rings vi a intramolecular delta-hydrogen abstraction. X-Ray analysis shows that 5 ha s a rectangular cavity of ca. 5.9 Angstrom x7.6 Angstrom. (C) 2000 Elsevier Science Ltd. All rights reserved.