GB874774A - Carbamates of 5,5-bis-hydroxymethyl-1,3-dioxan substituted in the 2-position - Google Patents

Carbamates of 5,5-bis-hydroxymethyl-1,3-dioxan substituted in the 2-position

Info

Publication number
GB874774A
GB874774A GB12084/60A GB1208460A GB874774A GB 874774 A GB874774 A GB 874774A GB 12084/60 A GB12084/60 A GB 12084/60A GB 1208460 A GB1208460 A GB 1208460A GB 874774 A GB874774 A GB 874774A
Authority
GB
United Kingdom
Prior art keywords
hydrogen
alkyl
acid
radical
aryl
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
GB12084/60A
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.)
BOTTU SOC D EXPL DES LAB
Original Assignee
BOTTU SOC D EXPL DES LAB
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 BOTTU SOC D EXPL DES LAB filed Critical BOTTU SOC D EXPL DES LAB
Publication of GB874774A publication Critical patent/GB874774A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
    • C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings

Landscapes

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

Abstract

The invention comprises carbamates of the formula <FORM:0874774/IV (b)/1> (wherein R1 is hydrogen or an alkyl radical, R2 is an alkyl, halogenated alkyl, alkenyl or aryl radical, R3 is hydrogen, an alkyl radical of at most 3 carbon atoms or an aryl or alkaryl radical, R4 is hydrogen or an alkyl radical of at most 3 carbon atoms and X is hydrogen or the group -CONR5R6 wherein R5 and R6 correspond to the definitions given for R3 and R4 respectively) and their preparation by reacting a compound of the formula <FORM:0874774/IV (b)/2> with (a) a reactive functional derivative of the appropriate carbamic acid R3R4NCOOH; or (b) a reactive derivative of carbonic acid and then treating the intermediate product with the appropriate amine NHR3R4; or (c) cyanic acid or an isocyanate R3NCO. Suitable derivatives for use in (a) and (b) include carbamyl chlorides R3R4NCOCl, carbamic acid esters, phosgene and aliphatic or aromatic chloroformates, while (c) is preferably effected either with the use of cyanic acid obtained in situ by reacting an alkali metal cyanate with a strong organic acid or by heating cyanuric acid or urea or with the use of a lower alkyl or aryl isocyanate. Examples are given. Diols of the second general formula above are prepared from pentaerythritol and the appropriate aldehydes or ketones.
GB12084/60A 1959-04-10 1960-04-05 Carbamates of 5,5-bis-hydroxymethyl-1,3-dioxan substituted in the 2-position Expired GB874774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH874774X 1959-04-10

Publications (1)

Publication Number Publication Date
GB874774A true GB874774A (en) 1961-08-10

Family

ID=4544312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12084/60A Expired GB874774A (en) 1959-04-10 1960-04-05 Carbamates of 5,5-bis-hydroxymethyl-1,3-dioxan substituted in the 2-position

Country Status (1)

Country Link
GB (1) GB874774A (en)

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