Process for the preparation of 2-substituted cyclopentanones

Details Process for the preparation of 2-substituted cyclopentanones Process for the preparation of 2-substituted cyclopentanones

1996-06-21

1997-09-30

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568338, 568346, C07C 4545

Patent

active

056727631

ABSTRACT:
2-Substituted cyclopentanones are prepared by reacting adipic ester with an alkoxide in the presence of an inert solvent, thus obtaining a salt of the cyclopentanone-2-carboxylic ester, alkylating this without isolation, thus obtaining a 2-alkyl-cyclopentanone-2-carboxylic ester and, without isolation, hydrolysing and decarboxylating this by treatment with an acid and heating.

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Synthesis, Nr. 12, Dec. 1983, Seiten 996-997, XP000616229 Henerson, D., et al.: "A Quick and Efficient Route to 2-Substituted Cyclopentanones and Cyclohexanones".
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