[4(+)+2]-type polar cycloadditions of 2-benzothiopyrylium salt with alkenes

Authors
Shimizu, H Araki, N Muraoka, O Tanabe, G
Citation
H. Shimizu et al., [4(+)+2]-type polar cycloadditions of 2-benzothiopyrylium salt with alkenes, TETRAHEDR L, 41(13), 2000, pp. 2161-2164
Citations number
7
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
41
Issue
13
Year of publication
2000
Pages
2161 - 2164
Database
ISI
SICI code
0040-4039(20000327)41:13<2161:[PCO2S>2.0.ZU;2-Y
Abstract
Treatment of 2-benzothiopyrylium salt with alkenes such as styrene, p-methy lstyrene, p-methoxystyrene, alpha-methylstyrene, and trans-anethole afforde d the corresponding [4(+)+2]-type polar cycloaddition products, respectivel y. The structures of the cycloadducts were confirmed by X-ray crystal struc ture determination of the corresponding sulfone derivative. (C) 2000 Elsevi er Science Ltd. All rights reserved.