DEVELOPMENT OF TECHNOLOGY FOR LOW-TONNAGE PRODUCTION OF VINYL ACETYLENE ON THE BASIS OF 1,3-DICHLORBUT-2-ENE

Authors

  • A. Hasratyan The Scientific-Technological Center of Organic and Pharmaceutical Chemistry NAS RA , Institute of Organic Chemistry
  • G. Danagulyan Russian-Armenian (Slavonic) University
  • H. Attaryan The Scientific-Technological Center of Organic and Pharmaceutical Chemistry NAS RA , Russian-Armenian (Slavonic) University

DOI:

https://doi.org/10.31618/asj.2707-9864.2021.1.50.116

Keywords:

: dehydrochlorination, 1,3-dichlorobut-2-ene, vinyl acetylene, chloroprene.

Abstract

The process of dehydrochlorination of 1,3-dichlorobut-2-ene using caustic potassium in ethylene glycol has been studied, and a technological scheme for the production of vinyl acetylene has been proposed. It is noted that during the process of dehydrochlorination of 1,3-dichlorobut-2-ene, in addition to vinyl acetylene, acetylene homologues are also formed, which are easily separated from commercial vinyl acetylene. Composition and percentage of the formed acetylene homologues has been determined.

In addition to chloroprene, three more compounds were separated and identified as by-products formed during the dehydrochlorination of 1,3-dichlorobut-2-ene – 3-(chloro-1-[3-chlorobut-2-en-1-yl]oxy)but-2-en, 1-(but-2-yn1-yloxy)-3-chlorobut-2-ene and 1-(but-2-ynyloxy)but-2-yne.

References

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Published

2021-08-11

Issue

Vol. 1 No. 51 (2021)

Section

Статьи

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