Patent · US Expired

Preparation of new fluoropivalic acid fluorides

US4549994A · kind A · utility

5Cited by

2References

2Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Hermann Hagemann · Leverkusen, DE
Erich Klauke
Ernst Kysela · Bensberg, DE

Key dates

Filing date	Jul 13, 1984
Grant date	Oct 29, 1985
Priority date	—
Expiry date	Jul 13, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C51/58
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the preparation of a compound according to claim 1, comprising reacting a compound of the formula ##STR1## in which R.sup.3, R.sup.4 and R.sup.5 each independently is CH.sub.3 or CH.sub.2 Cl, at least one of the radicals R.sup.3, R.sup.4 and R.sup.5 being CH.sub.2 Cl, with a metal fluoride at elevated temperature. The products are new and useful as intermediates for making other compounds, especially carbamate insecticide synergists.

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