ISSN:
0170-2041
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Sulfur Compounds in Crude Oil, IV. - Alkaline Cleavage of 4,5-Annulated Cyclopenta[b]-thiophen-6-ones2-Aryl-4-(carboxyaryl)-3-thiophenecarboxylic acids 6a - c or esters 5 are formed from 4,5-annulated methyl 2-aryl-6-oxo-6H-cyclopenta[b]thiophene-3-carboxylates 1 by cleavage of the cyclopentadienone ring with methanolic potassium hydroxide. The mechanism is discussed.
Notes:
4,5-Anellierte 2-Aryl-6-oxo-6H-cyclopenta[b]thiophen-3-carbosäure-methylester 1 reagieren mit methanolischem Kaliumhydroxid unter Spaltung des Cylopentadienon-Ringes zu 2-Aryl-4-(carboxyaryl)-3-thiophencarbonsäuren 6a - c order Estern 5. Der Mechanismus wird diskutiert.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.198319831118
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