Monatshefte für Chemie/Chemical Monthly

Untersuchungen über Synthesewege zu 2-Äthynyl-2-cyclopenten-1-onen

K Eichinger

Index: Eichinger,K. Monatshefte fuer Chemie, 1975 , vol. 106, p. 1213 - 1218

Full Text: HTML

Citation Number: 5

Abstract

Abstract Synthetic approaches to 2-ethynyl-2-cyclopenten-1-ones (A) by dehydratation of the readily obtainable 2-(1-alkynyl)-2-hydroxy-cyclopentanones 1 a and 1 b were investigated. The synthesis of 2-(3, 3, 3-triphenylpropynyl)-2-cyclopenten-1-one (6) was achieved by reaction of 1-(3, 3, 3-triphenylpropynyl)-6-oxabicyclo [3.1. 0] hexane (3 b) with HCl and CrO 3-oxidation of the resulting 2-(3, 3, 3-triphenylpropynyl)-2-cyclopenten-1-ol (4).