Synthesis and structure of novel sulfur bridged cyclic di- and tetraalkynes

Authors
Braverman, S Cherkinsky, M Birsa, ML Tichman, S Goldberg, I
Citation
S. Braverman et al., Synthesis and structure of novel sulfur bridged cyclic di- and tetraalkynes, TETRAHEDR L, 42(42), 2001, pp. 7485-7488
Citations number
18
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
42
Issue
42
Year of publication
2001
Pages
7485 - 7488
Database
ISI
SICI code
0040-4039(20011015)42:42<7485:SASONS>2.0.ZU;2-Y
Abstract
Some novel sulfur bridged 13- to 30-membered cyclic di- and tetraalkynes de rived from 1,2, 1,3- and 1,4-dihydroxybenzene and 1,2-bis(bromomethyl)benze ne were synthesized and their structures confirmed by X-ray analysis. The u nexpected for-nation of 2.6-divinyl-1,4-dithiin during Na2S/alumina induced cyclization was also observed and the reaction mechanism is discussed. (C) , 2001 Elsevier Science Ltd. All rights reserved.