Title:
γ-VALEROLACTONE PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/138908
Kind Code:
A1
Abstract:
The present invention relates to a γ-valerolactone preparation method, the preparation method comprising mixing levulinic acid, a nickel-containing chemical compound and an organic phosphine chemical compound, and performing a reduction reaction, obtaining γ-valerolactone. In the method of the present invention, catalyst costs are low, a reaction solvent is not necessary, unit productivity is high, yield is high, a catalyst has high catalysis efficiency and is easy to separate from a product by means of distillation, techniques are simple, reaction conditions are mild, and the method is environmentally friendly, can be easily industrially expanded, and has strong significance for industrial application.
Inventors:
FU YAO (CN)
DENG JIN (CN)
ZADA BAKHT (CN)
DENG JIN (CN)
ZADA BAKHT (CN)
Application Number:
PCT/CN2020/071485
Publication Date:
July 15, 2021
Filing Date:
January 10, 2020
Export Citation:
Assignee:
UNIV SCIENCE & TECHNOLOGY CHINA (CN)
International Classes:
C07D307/33
Foreign References:
| CN111087369A | 2020-05-01 | |||
| US2368366A | 1945-01-30 | |||
| US20030105341A1 | 2003-06-05 | |||
| CN101376650A | 2009-03-04 |
Other References:
HENGST KONSTANTIN, SCHUBERT MARTIN, CARVALHO HUDSON W.P., LU CHANGBO, KLEIST WOLFGANG, GRUNWALDT JAN-DIERK: "Synthesis of γ-valerolactone by Hydrogenation of Levulinic Acid over Supported Nickel Catalysts.", APPLIED CATALYSIS A: GENERAL, vol. 502, 1 August 2015 (2015-08-01), pages 18 - 26, XP055827875, ISSN: 0926-860X, DOI: 10.1016/j.apcata.2015.05.007
ROBERT V. CHRISTIAN JR., HORACE D. BROWN, R. M. HIXON: "Derivatives of γ-Valerolactone 1, 4-Pentanediol and 1, 4-Bis(2-cyanoethoxy)pentane", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 69, no. 8, 1 August 1947 (1947-08-01), pages 1961 - 1963, XP055827878, ISSN: 0002-7863, DOI: 10.1021/ja01200a036
ROBERT V. CHRISTIAN JR., HORACE D. BROWN, R. M. HIXON: "Derivatives of γ-Valerolactone 1, 4-Pentanediol and 1, 4-Bis(2-cyanoethoxy)pentane", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 69, no. 8, 1 August 1947 (1947-08-01), pages 1961 - 1963, XP055827878, ISSN: 0002-7863, DOI: 10.1021/ja01200a036
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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