Patent · US Expired

Method for the preparation of (E)-4-bromo-2-methylbut-2-en-1-al

US4288635A · kind A · utility

3Cited by
3References
2Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 23, 1980
Grant dateSep 8, 1981
Priority date
Expiry dateMay 23, 2000

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C45/58
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A method for the preparation of (E)-4-bromo-2-methylbut-2-en-1-al comprises brominating 3,4-epoxy-3-methyl-1-butene with cupric bromide in the presence of lithium carbonate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.