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JPS5791984A - Preparation of lactone - Google Patents

Preparation of lactone

Info

Publication number
JPS5791984A
JPS5791984A JP55168317A JP16831780A JPS5791984A JP S5791984 A JPS5791984 A JP S5791984A JP 55168317 A JP55168317 A JP 55168317A JP 16831780 A JP16831780 A JP 16831780A JP S5791984 A JPS5791984 A JP S5791984A
Authority
JP
Japan
Prior art keywords
ruthenium
catalyst
lactone
formula
expressed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55168317A
Other languages
Japanese (ja)
Other versions
JPH021143B2 (en
Inventor
Tatsuo Kyuma
Shoji Tani
Kenji Nishio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHIN NIPPON RIKA KK
New Japan Chemical Co Ltd
Original Assignee
SHIN NIPPON RIKA KK
New Japan Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHIN NIPPON RIKA KK, New Japan Chemical Co Ltd filed Critical SHIN NIPPON RIKA KK
Priority to JP55168317A priority Critical patent/JPS5791984A/en
Publication of JPS5791984A publication Critical patent/JPS5791984A/en
Publication of JPH021143B2 publication Critical patent/JPH021143B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Furan Compounds (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE: To obtain a lactone useful as a raw material for preparing a polyester, etc. at a high rate of reaction and selectivity, by reducing an alicyclic acid anhydride or an acid containing hydrous acid thereof under pressure in the presence of a ruthenium catalyst.
CONSTITUTION: A compound of formulaIor II[A is a group of formula III or IV (R1 and R2 are H or 1W4C alkyl)]is catalytically hydrogenated in the presence of a ruthenium catalyst to give a lactone of formula V (B is a group of formula V), e.g. hexahydrophthalide. Simple metallic ruthenium may be used as the ruthenium catalyst, and 1W5% expressed in terms of ruthenium, catalytic component is preferably supported on carbon, alumina or silica asbestos, etc. as a carrier. The amount of the catalyst to be used is preferably 0.05W0.5% expressed in terms of ruthenium based on the raw material. The reaction temperature is 150W200°C, and the hydrogen gas pressure is 30W70kg/cm2.G.
COPYRIGHT: (C)1982,JPO&Japio
JP55168317A 1980-11-29 1980-11-29 Preparation of lactone Granted JPS5791984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55168317A JPS5791984A (en) 1980-11-29 1980-11-29 Preparation of lactone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55168317A JPS5791984A (en) 1980-11-29 1980-11-29 Preparation of lactone

Publications (2)

Publication Number Publication Date
JPS5791984A true JPS5791984A (en) 1982-06-08
JPH021143B2 JPH021143B2 (en) 1990-01-10

Family

ID=15865784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55168317A Granted JPS5791984A (en) 1980-11-29 1980-11-29 Preparation of lactone

Country Status (1)

Country Link
JP (1) JPS5791984A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215681A (en) * 1984-04-10 1985-10-29 Nippon Shokubai Kagaku Kogyo Co Ltd Production of phthalide

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52122359A (en) * 1976-04-02 1977-10-14 Dynamit Nobel Ag Prepatation of phthalide

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52122359A (en) * 1976-04-02 1977-10-14 Dynamit Nobel Ag Prepatation of phthalide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215681A (en) * 1984-04-10 1985-10-29 Nippon Shokubai Kagaku Kogyo Co Ltd Production of phthalide

Also Published As

Publication number Publication date
JPH021143B2 (en) 1990-01-10

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