𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effects of electron-withdrawing group on the photoisomerization of tetraaryl-4H-thiopyran-1,1-dioxides

✍ Scribed by Farnaz Jafarpour; Fatemeh Ramezani; Hooshang Pirelahi

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
117 KB
Volume
19
Category
Article
ISSN
1042-7163

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Syntheses and photoisomerization of the new sulfone derivatives, 4,4‐di (p‐trifluoromethylphenyl)‐2,6‐diphenyl‐4H‐thiopyran‐1, 1‐dioxide and 4‐(p‐trifluoromethylphenyl)‐2,4,6‐triphenyl‐4H‐thiopyran‐1,1‐dioxide, have been investigated. The relative molar ratios of the photoproducts are compared with those of 2,4,4,6‐tetraphenyl‐4H‐thiopyran‐1,1‐dioxide as well as electron‐donating substituted 4‐methyl‐2,4,6‐triaryl‐4H‐thiopyran‐1,1‐dioxides as model compounds under identical experimental conditions using ^1^H NMR spectroscopy. The results observed are discussed on the basis of a triplet excited state di‐π‐methane rearrangement. © 2008 Wiley Periodicals, Inc. Heteroatom Chem 19:557–561, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20455

📜 SIMILAR VOLUMES

ChemInform Abstract: Diels—Alder Reactio
ChemInform Abstract: Diels—Alder Reaction of 1,3-Butadiene Derivatives with 1-Methyl-2(1H)-quinolones Having an Electron-Withdrawing Group at the 4-Position.
✍ Reiko Fujita; Kazuhiro Watanabe; Toshiteru Yoshisuji; Hiroshi Hongo; Hisao Matsu 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v