GB814213A - Cyano substituted aliphatic isothiocyanates - Google Patents

Cyano substituted aliphatic isothiocyanates

Info

Publication number
GB814213A
GB814213A GB3149356A GB3149356A GB814213A GB 814213 A GB814213 A GB 814213A GB 3149356 A GB3149356 A GB 3149356A GB 3149356 A GB3149356 A GB 3149356A GB 814213 A GB814213 A GB 814213A
Authority
GB
United Kingdom
Prior art keywords
cyanoalkyldithiocarbamate
mol
equivalent
preparation
inert
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
GB3149356A
Inventor
David L Garmaise
Arthur Ferguson Mckay
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.)
Monsanto Canada Inc
Original Assignee
Monsanto Canada Inc
Filing date
Publication date
Application filed by Monsanto Canada Inc filed Critical Monsanto Canada Inc
Priority to US689758A priority Critical patent/US2886584A/en
Publication of GB814213A publication Critical patent/GB814213A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C331/00Derivatives of thiocyanic acid or of isothiocyanic acid
    • C07C331/16Isothiocyanates
    • C07C331/18Isothiocyanates having isothiocyanate groups bound to acyclic carbon atoms
    • C07C331/20Isothiocyanates having isothiocyanate groups bound to acyclic carbon atoms of a saturated carbon skeleton

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention comprises compounds of the general formula NC(A)N = C = S wherein A represents an alkylene radical having from 2-14 carbon atoms, the chain being either straight or branched, and the preparation thereof wherein (A) a cyanoalkamine is reacted with carbon disulphide in the presence of a tertiary amine, preferably triethyamine, and in an inert solvent, preferably an inert chlorinated solvent such as chloroform, to form the corresponding cyanoalkyldithiocarbamate salt, ethyl chloroformate is added to form the carbethoxy cyanoalkyldithiocarbamate which is decomposed by the addition of one mol. equivalent of a tertiary base to give a cyanoalkylisothiocyanate; or (B) a cyanoalkamine is reacted with carbon disulphide in the presence of a tertiary amine such as triethylamine, and in an inert solvent, preferably an inert chlorinated solvent such as methylene chloride, to form the cyanoalkyldithiocarbamate salt which is oxidized with sodium hypochlorite to form the cyanoalkylisothiocyanate. Examples are given of the preparation of the following compounds either by method (A) or (B) or both: 2-cyanoethyl-, 1-methyl-2-cyanoethyl -, 2 - cyanopropyl -, 3 - cyanopropyl -, 4 - cyanobutyl -, 5 - cyanopentyl -, 6-cyanohexyl -, 10 - cyanodecyl -, and 14 - cyanotetradecylisothiocyanates. The Provisional Specification relates to compounds of the general formula CN(CH2)nN = C = S, in which n is an integer from 2 to 18 and the preparation thereof by treating the aminonitrile in aqueous solution at a temperature between 0 DEG and 20 DEG C. in the presence of one mol. equivalent of a base, for example ammonium, potassium or sodium hydroxide or triethylamine, with one mol. equivalent of carbon disulphide. No additional examples are given.
GB3149356A 1956-10-16 1956-10-16 Cyano substituted aliphatic isothiocyanates Expired GB814213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US689758A US2886584A (en) 1956-10-16 1957-10-14 Cyano substituted aliphatic isothiocyanates

Publications (1)

Publication Number Publication Date
GB814213A true GB814213A (en) 1959-06-03

Family

ID=1742581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3149356A Expired GB814213A (en) 1956-10-16 1956-10-16 Cyano substituted aliphatic isothiocyanates

Country Status (1)

Country Link
GB (1) GB814213A (en)

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