DE319505C - Process for the preparation of dimethylbutadiene - Google Patents

Process for the preparation of dimethylbutadiene

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Publication number
DE319505C
DE319505C DE1916319505D DE319505DD DE319505C DE 319505 C DE319505 C DE 319505C DE 1916319505 D DE1916319505 D DE 1916319505D DE 319505D D DE319505D D DE 319505DD DE 319505 C DE319505 C DE 319505C
Authority
DE
Germany
Prior art keywords
dimethylbutadiene
preparation
ammonia
pinaconchlorohydrin
organic bases
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
DE1916319505D
Other languages
German (de)
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.)
Bayer AG
Original Assignee
Farbenfabriken Vorm Friedr Bayer and Co
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 Farbenfabriken Vorm Friedr Bayer and Co filed Critical Farbenfabriken Vorm Friedr Bayer and Co
Application granted granted Critical
Publication of DE319505C publication Critical patent/DE319505C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon

Landscapes

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

Description

Verfahren zur Darstellung von Dimethylbutadien. Durch Destillation von Pinakonchlorhydrin mit festem Kali erhält man Tetramethyläthylenoxyd (s. Beilstein, Organische Chemie, =893, Band I, Seite ßxo, Absatz 3).Process for the preparation of dimethylbutadiene. By distillation tetramethylethylene oxide is obtained from pinaconchlorohydrin with solid potash (see Beilstein, Organic chemistry, = 893, volume I, page ßxo, paragraph 3).

Es wurde nun überraschenderweise gefunden, daß man durch Behandeln von Pinakonchlorhydrin mit Chlorwasserstoff bindenden Mitteln, wie Ammoniak, Dimethylanilin, Anilin oder anderen organischen Basen, bereits bei verhältnismäßig niedriger Temparatur, in quantitativer Weise zu Dimethylbutadien kommt.It has now surprisingly been found that by treating of pinaconchlorohydrin with agents that bind hydrogen chloride, such as ammonia, dimethylaniline, Aniline or other organic bases, even at a relatively low temperature, comes to dimethylbutadiene in a quantitative manner.

B e i s p i e 1. 2o Teile Pinakonchlorhydrin werden mit 2o Teile Dimethylanilin der Destillation unterworfen. Zwischen 6o und 8o° geht ein Gemisch von Wasser und Dimethylbutadien über, das nach dem Ablassen des Wassers und Trocknen fast aus reinem Dimethylbutadien besteht. .Example 1. 2o parts of pinaconchlorohydrin are mixed with 20 parts of dimethylaniline subjected to distillation. Between 6o and 8o ° a mixture of water and Dimethylbutadiene over, which after draining the water and drying is almost pure Dimethylbutadiene consists. .

Claims (1)

PATENT-ANsPRUcH: Verfahren zur Darstellung von Dimethylbutadien, dadurch gekennzeichnet, daß man Pinakonchlorhydrin mit hydroxylfreien salzsäurebindenden Mitteln, wie Ammoniak oder organischen Basen, behandelt.PATENT CLAIM: Process for the preparation of dimethylbutadiene, thereby characterized in that one pinacon chlorohydrin with hydroxyl-free hydrochloric acid binding Agents such as ammonia or organic bases.
DE1916319505D 1916-09-02 1916-09-02 Process for the preparation of dimethylbutadiene Expired DE319505C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE319505T 1916-09-02

Publications (1)

Publication Number Publication Date
DE319505C true DE319505C (en) 1920-03-02

Family

ID=6152008

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1916319505D Expired DE319505C (en) 1916-09-02 1916-09-02 Process for the preparation of dimethylbutadiene

Country Status (1)

Country Link
DE (1) DE319505C (en)

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