Patent · US Expired

Fluorocyclopropanes

US4570018A · kind A · utility

4Cited by
1References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 16, 1984
Grant dateFeb 11, 1986
Priority date
Expiry dateMay 16, 2004

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C2601/02
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A novel chemical, fluorochlorocyclopropane (I) of the following formula: ##STR1## is prepared by the addition of fluorochlorocarbene to the corresponding olefin (II) of the following formula: EQU CH.sub.2 .dbd.CR.sup.1 -R.sup.2 The compound is a useful intermediate for synthesizing some chemicals, e.g., some cephalosporins. PA0 (wherein R.sup.1 is hydrogen, halogen, 1 to 8C alkylamino, alkoxy, or alkylthio and PA0 R.sup.2 is halogen, 1 to 8C alkylamino, alkoxy, or alkylthio).

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