GB876588A - Carbamic acid esters and means for producing the same - Google Patents

Carbamic acid esters and means for producing the same

Info

Publication number
GB876588A
GB876588A GB1981360A GB1981360A GB876588A GB 876588 A GB876588 A GB 876588A GB 1981360 A GB1981360 A GB 1981360A GB 1981360 A GB1981360 A GB 1981360A GB 876588 A GB876588 A GB 876588A
Authority
GB
United Kingdom
Prior art keywords
trichloromethyl
pent
acid esters
carbamic acid
reacting
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
GB1981360A
Inventor
John Frederick Cavalla
Derek Charles Bishop
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.)
Parke Davis and Co LLC
Original Assignee
Parke Davis and Co LLC
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 Parke Davis and Co LLC filed Critical Parke Davis and Co LLC
Priority to GB1981360A priority Critical patent/GB876588A/en
Publication of GB876588A publication Critical patent/GB876588A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C271/06—Esters of carbamic acids

Landscapes

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

Abstract

The invention comprises carbamic acid esters of 2-trichloromethyl-pent-4-yn-2-ol and 3-trichloromethyl-pent-4-yn-3-ol and the preparation thereof by reacting the appropriate trichloromethyl-pentynol with an alkali metal, an alkali metal amide, an alkali metal hydride or an alkaline-earth metal hydride and treating the resulting metal salt successively with phosgene, to provide the corresponding chloroformate, and ammonia. The products are sedatives and hypnotics. 3-Trichloromethyl-pent-4-yn-3-ol is prepared by reacting 1,1,1-trichlorobutan-2-one with ethynyl magnesium bromide. 1,1,1-Trichlorobutan-2-one is prepared by reacting ethyl magnesium bromide and trichlorocetyl chloride.
GB1981360A 1960-06-03 1960-06-03 Carbamic acid esters and means for producing the same Expired GB876588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1981360A GB876588A (en) 1960-06-03 1960-06-03 Carbamic acid esters and means for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1981360A GB876588A (en) 1960-06-03 1960-06-03 Carbamic acid esters and means for producing the same

Publications (1)

Publication Number Publication Date
GB876588A true GB876588A (en) 1961-09-06

Family

ID=10135661

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1981360A Expired GB876588A (en) 1960-06-03 1960-06-03 Carbamic acid esters and means for producing the same

Country Status (1)

Country Link
GB (1) GB876588A (en)

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