✦ LIBER ✦

Thiophen chemistry VIII: Michael Additions to 2(5H)-thiophenone

✍ Scribed by Hans Jørgen Jakobsen; Ertk Holger Larsen; Sven-Olov Lawesson

Book ID: 104586665
Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 343 KB
Volume: 82
Category: Article
ISSN: 0165-0513
DOI: 10.1002/recl.19630820807

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

2‐Hydroxythiophen exists at room temperature mainly in the tautomeric form 2(5H)‐thiophenone^13^ and is conveniently prepared^3^ by splitting 2‐thienyl t‐butyl ether by heating it with catalytic amounts of p‐toluenesulphonic acid at about 150°. 2(5H)‐Thiophenone, an α,β‐unsaturated cyclic thioester (thiolactone), has been shown to undergo Michael addition with different types of so‐called active methylene compounds.

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