Efficient Procedures for 1-Bromo-1,3-Butadiene and 2-Bromo-1,3-Butadiene
1991; Taylor & Francis; Volume: 21; Issue: 5 Linguagem: Inglês
10.1080/00397919108020841
ISSN1532-2432
AutoresM. A. Keegstra, H. D. Verkruijsse, H. Andringa, L. Brandsma,
Tópico(s)Inorganic and Organometallic Chemistry
ResumoAbstract Mixtures of Z- and E-1-bromo-1,3-butadiene in which the E- or Z- isomer predominates have been obtained in good yields by treating a mixture of Z- and E- 1,4-dibromo-2-butene (90% Z-isomer) or pure E-1,4-dibromo-2-butene, respectively, with powdered potassium hydroxide in high-boiling petroleum. 2-Bromo-1,3-butadiene was obtained in high yields by stirring a mixture of vinylacetylene, concentrated aqueous hydrogen bromide and copper(I) bromide.
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