The Synthesis of 2,5-Dialkylcyclopentanones from Aliphatic Aldehydes and Formaldehyde

DOI: 10.1246/bcsj.54.3875

Source and publish data:

Bulletin of the Chemical Society of Japan p. 3875 - 3876 (1981)

Update date:2022-08-04

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Authors:

Watanabe, Yoshihisa

Sakamoto, Fukashi

Shim, Sang Chul

Mitsudo, Take-aki

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Article abstract of DOI:10.1246/bcsj.54.3875

Aliphatic aldehydes react with formaldehyde in the presence of dimethylamine hydrochloride at 200 deg C to form 2,5-dialkylcyclopentanones in moderate yields.Propanal, butanal, and pentanal give 2,5-dimethyl-, 2,5-diethyl-, and 2,5-dipropylcyclopentanone respectively, but ethanal gives only a tarry material.

Full text of DOI:10.1246/bcsj.54.3875

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