Patent · US Expired

Process for the preparation of 2,4,6-trifluoro-1,3,5-triazine

US4329458A · kind A · utility

3Cited by

2References

8Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Erich Klauke
Ernst Kysela · Bensberg, DE
Arnd Stuwe · Leverkusen, DE
Alfons Dorlars · Leverkusen, DE

Key dates

Filing date	Feb 26, 1981
Grant date	May 11, 1982
Priority date	—
Expiry date	Feb 26, 2001

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D251/28
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for the preparation of 2,4,6-trifluoro-1,3,5-triazine (TFT) from 2,4,6-trichloro-1,3,5-triazine (TCT) or from mixed chlorinated/fluorinated 1,3,5-triazines by fluorination with sodium fluoride in dipolar aprotic solvents. The process is characterized in that TCT or mixed chlorinated/fluorinated 1,3,5-triazines or mixtures thereof are metered into a suspension of sodium fluoride in a dipolar, aprotic solvent, which is warmed to a temperature of between 120.degree. C. and 220.degree. C. and optionally contains a further solvent.

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