US 6,476,230 B1Granted

Process for the preparation of thiazole derivatives

AssigneeSyngenta Crop Protection AG

InventorKevin Coppola

Life of this patent

Estimating the term…

Abstract

The present invention relates to intermediate thiazole compounds and a process for preparing 2-chloro-5-chloromethylthiazole which is a known compound useful for the preparation of insecticides.

Claims5

Dependent claims

A process for preparing the compound having the formula

or acid addition salts thereof, comprising the step of reacting 2-chloro-5-hydroxymethylthiazole having the formula
with chloride anion source in the presence of acid.

Dependencies are inferred from the claim text.

Facts

Application: 10/049,073Filed 4 Feb 2002 · division
Priority: 8 Oct 1999
Granted: 5 Nov 2002
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

C07D 277/32
Having two or three double bonds between ring members or between ring members and non-ring members: with hetero atoms or with carbon atoms having…
C07D 277/34
With hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals,…:…
C07D 277/40
Nitrogen atoms: unsubstituted amino or imino radicals
C07D 277/50
Nitrogen atoms: nitrogen atoms bound to hetero atoms

Family

Application09/371,180Parent of this division · filed 8 Oct 1999
US 6,265,553 B1Parent of this division
US 6,476,230 B1This patent

From the US filing history. Foreign family members aren’t listed.

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