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BE1003309A3 - PROCESS FOR THE CONVERSION OF ALPHA-ALKYL-LACTONES TO ALPHA-ALKYLIDENE-LACTONES. - Google Patents

PROCESS FOR THE CONVERSION OF ALPHA-ALKYL-LACTONES TO ALPHA-ALKYLIDENE-LACTONES. Download PDF

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Publication number
BE1003309A3
BE1003309A3 BE9000199A BE9000199A BE1003309A3 BE 1003309 A3 BE1003309 A3 BE 1003309A3 BE 9000199 A BE9000199 A BE 9000199A BE 9000199 A BE9000199 A BE 9000199A BE 1003309 A3 BE1003309 A3 BE 1003309A3
Authority
BE
Belgium
Prior art keywords
alpha
lactones
alkylidene
alkyl
conversion
Prior art date
Application number
BE9000199A
Other languages
French (fr)
Inventor
Louis Rebrovic
Original Assignee
Henkel Corp
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 Henkel Corp filed Critical Henkel Corp
Application granted granted Critical
Publication of BE1003309A3 publication Critical patent/BE1003309A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D315/00—Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups C07D303/00 - C07D313/00
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/58—One oxygen atom, e.g. butenolide
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/32—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Furan Compounds (AREA)
  • Pyrane Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Procédé commode de préparation d'alpha-alkylidène-gamma-butyrolactones et -delta-valérolactones. Le procédé implique la réaction de proportions sensiblement équimolaires d'une alpha-acyl-lactone, d'un aldéhyde et d'un hydroxyde de métal alcalin dans un diluant inerte et à température élevée, tout en chassant l'eau.Convenient process for the preparation of alpha-alkylidene-gamma-butyrolactones and -delta-valerolactones. The process involves reacting substantially equimolar proportions of an alpha-acyl lactone, an aldehyde and an alkali metal hydroxide in an inert diluent and at elevated temperature, while expelling water.

BE9000199A 1989-02-24 1990-02-23 PROCESS FOR THE CONVERSION OF ALPHA-ALKYL-LACTONES TO ALPHA-ALKYLIDENE-LACTONES. BE1003309A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31511089A 1989-02-24 1989-02-24

Publications (1)

Publication Number Publication Date
BE1003309A3 true BE1003309A3 (en) 1992-02-25

Family

ID=23222934

Family Applications (1)

Application Number Title Priority Date Filing Date
BE9000199A BE1003309A3 (en) 1989-02-24 1990-02-23 PROCESS FOR THE CONVERSION OF ALPHA-ALKYL-LACTONES TO ALPHA-ALKYLIDENE-LACTONES.

Country Status (7)

Country Link
JP (1) JPH02273668A (en)
BE (1) BE1003309A3 (en)
DE (1) DE4005516A1 (en)
FR (1) FR2643636A1 (en)
GB (1) GB2228482B (en)
IT (1) IT9067139A1 (en)
NL (1) NL9000444A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416224A (en) * 1989-02-24 1995-05-16 Henkel Corporation Process for converting α-acyl-substituted lactones to α-alkylidene-substituted lactones
US6046185A (en) 1996-07-11 2000-04-04 Inflazyme Pharmaceuticals Ltd. 6,7-oxygenated steroids and uses related thereto
US6770658B2 (en) 1998-09-09 2004-08-03 Inflazyme Pharmaceuticals Ltd. Substituted γ-phenyl-Δ-lactams and uses related thereto
WO2025033537A1 (en) * 2023-08-10 2025-02-13 株式会社日本触媒 Method for producing methylene lactone-based compound

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0246581A2 (en) * 1986-05-22 1987-11-25 BASF Aktiengesellschaft Process for the preparation of alpha-substituted gamma-butyrolactones

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0246581A2 (en) * 1986-05-22 1987-11-25 BASF Aktiengesellschaft Process for the preparation of alpha-substituted gamma-butyrolactones

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 78, no. 21, 28 mai 1973, page 354, abrégé no. 135970x, Columbus, Ohio, US; V.M. DASHUNIN et al.: "Synthesis of substituted lactones, their odor, and some transformations", & MEZHDUNAR. KONGR. EFIRNYM MASLAM, ÄMATER,Ü, 4TH 1968 (PUB. 1971), 1, 90-7 *
JOURNAL OF ORGANIC CHEMISTRY, vol. 42, no. 7, 1977, pages 1180-1185; G.M. KSANDER et al.: "A method for the synthesis of unsaturated carbonyl compounds" *
TETRAHEDRON LETTERS, no. 39, 1978, pages 3753-3756; Y. UENO et al.: "Deacylative condensation I. A new facile method for the direct alpha-methylenation of ester or lactone starting from monosubstituted active methylene compounds" *

Also Published As

Publication number Publication date
FR2643636A1 (en) 1990-08-31
GB2228482A (en) 1990-08-29
NL9000444A (en) 1990-09-17
IT9067139A1 (en) 1990-08-25
IT9067139A0 (en) 1990-02-23
DE4005516A1 (en) 1990-08-30
GB2228482B (en) 1992-08-12
JPH02273668A (en) 1990-11-08
GB9004143D0 (en) 1990-04-18

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: HENKEL CORP.

Effective date: 19930228