Patent · US Expired

Butenoic and pyruvic acid derivatives

US4016196A · kind A · utility

5Cited by
1References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 28, 1975
Grant dateApr 5, 1977
Priority date
Expiry dateJul 28, 1995

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C69/738
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Process for preparing a 2-hydroxy-butenoic acid derivative of the general formula, ##STR1## wherein R.sup.1 is a group selected from aliphatic, alicyclic or aromatic radicals and R.sup.2 is a lower alkyl group by heating a glycidic acid derivative having the general formula, ##STR2## wherein R.sup.1 and R.sup.2 is as defined above or for preparing a pyruvic acid derivative of the general formula, ##STR3## wherein R.sup.1 and R.sup.2 are as defined above by heating the glycidic acid derivative of the above mentioned formula (I) or the 2-hydroxy-butenoic acid derivative of formula (II) in the presence of an electrophilic agent.

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