Title:
MANUFACTURE OF 5-ALKYLBUTYROLACTONE
Document Type and Number:
Japanese Patent JPS588073
Kind Code:
A
Abstract:
The preparation of 5-alkyl-butyrolactones is described using C8 hydrocarbon levulinate esters, with side-chain alkyl substituents of up to 4 carbon atoms as starting material, with the reaction being conducted with hydrogen at a temperature of from 150 DEG to 325 DEG C., in the gas phase, and in the presence of a hydrogenation catalyst composed of metals of Group VIII or Group Ib of the Periodic Table. The process provides extremely high conversion rates and lactone yields, the prolonged catalyst activity.
Inventors:
KOONERISU HERARUDASU MARIYA FU
PETORASU HIYUUBERUTO YOZEFU YA
PETORASU HIYUUBERUTO YOZEFU YA
Application Number:
JP11244582A
Publication Date:
January 18, 1983
Filing Date:
June 29, 1982
Export Citation:
Assignee:
STAMICARBON
International Classes:
C07D307/33; B01J23/00; B01J23/75; B01J23/755; C07B61/00; C07D315/00; (IPC1-7): B01J23/74; C07D307/32
Attorney, Agent or Firm:
Toshio Yano
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