GB1269595A - Preparation of unsaturated compounds by xanthate decomposition - Google Patents

Preparation of unsaturated compounds by xanthate decomposition

Info

Publication number
GB1269595A
GB1269595A GB4106570A GB4106570A GB1269595A GB 1269595 A GB1269595 A GB 1269595A GB 4106570 A GB4106570 A GB 4106570A GB 4106570 A GB4106570 A GB 4106570A GB 1269595 A GB1269595 A GB 1269595A
Authority
GB
United Kingdom
Prior art keywords
xanthate
cholesterol
propyl
preparation
complex
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.)
Expired
Application number
GB4106570A
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.)
Tee Pak Inc
Original Assignee
Tee Pak Inc
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 Tee Pak Inc filed Critical Tee Pak Inc
Publication of GB1269595A publication Critical patent/GB1269595A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B33/00Preparation of derivatives of amylose
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/36Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon by splitting of esters
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C329/00Thiocarbonic acids; Halides, esters or anhydrides thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00Preparation of derivatives of starch
    • C08B31/02Esters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B9/00Cellulose xanthate; Viscose
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Steroid Compounds (AREA)

Abstract

1,269,595. Xanthate esters and unsaturated compounds produced therefrom. TEE PAK Inc. 26 Aug., 1970 [10 Sept., 1969 (2)], No. 41065/70. Headings C2C and C2U. [Also in Divisions C3 and C5] Unsaturated compounds are prepared from a xanthate ester of the formula where R is an alkyl function having at least one H in a position alpha to the R-O bond, (C) n is a linear alkylene function either substituted or unsubstituted, with n = 1 to 3, X has a basicity greater than the = C = S function and comprises a C or S containing functional group having at least one double or triple bond to a hetero atom, the functional group being connected to (C) n through C or S; by heating said ester in water or a protonated non-aqueous solvent or by forming a derivative complex of the formula where A is a Lewis acid, and treating the complex with water or an active hydrogen containing solvent to decompose the complex, thereby producing an unsaturated derivative of R. Examples described the preparation of delta 3,5-cholestaldienes from S-cyanoethyl cholesterol xanthate and from S-(acetaldehyde dimethyl acetal) cholesterol xanthate. The preparation of the xanthate ester starting materials is described from the corresponding sodium salt of the xanthate and include xanthates of S-(3- propane sulphonate)-2-propyl-; S-methyl-2- propyl-, S - carboxymethyl - 2 - propyl-, S- cyanoethylcyclohexyl-, S - cyanoethyl cholesterol and S-(acetaldehyde dimethylacetal) cholesterol.
GB4106570A 1969-09-10 1970-08-26 Preparation of unsaturated compounds by xanthate decomposition Expired GB1269595A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85682169A 1969-09-10 1969-09-10
US85681369A 1969-09-10 1969-09-10

Publications (1)

Publication Number Publication Date
GB1269595A true GB1269595A (en) 1972-04-06

Family

ID=27127378

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4106570A Expired GB1269595A (en) 1969-09-10 1970-08-26 Preparation of unsaturated compounds by xanthate decomposition

Country Status (5)

Country Link
JP (1) JPS4843322B1 (en)
DE (1) DE2044854C3 (en)
FR (1) FR2061228A5 (en)
GB (1) GB1269595A (en)
NL (1) NL7013213A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5898229U (en) * 1981-12-25 1983-07-04 日野自動車株式会社 transfer cooling system
JPS61235219A (en) * 1985-04-12 1986-10-20 Yanmar Diesel Engine Co Ltd Main clutch cooling device for farm tractor
SE451008B (en) * 1985-12-03 1987-08-24 Sab Nife Ab SPRING BRAKE ACTUATOR FOR A BRAKE UNIT

Also Published As

Publication number Publication date
DE2044854B2 (en) 1974-05-09
DE2044854A1 (en) 1971-05-06
NL7013213A (en) 1971-03-12
FR2061228A5 (en) 1971-06-18
DE2044854C3 (en) 1975-01-09
JPS4843322B1 (en) 1973-12-18

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