Global Patent Index - EP 1751110 A1

EP 1751110 A1 20070214 - METHOD FOR THE PRODUCTION OF A-CHLOROALKYLPYRIDYL KETONES AND/OR THE HYDROCHLORIDES THEREOF

Title (en)

METHOD FOR THE PRODUCTION OF A-CHLOROALKYLPYRIDYL KETONES AND/OR THE HYDROCHLORIDES THEREOF

Title (de)

VERFAHREN ZUR HERSTELLUNG VON A-CHLORALKYLPYRIDYLKETONEN UND/ODER DEREN HYDROCHLORIDEN

Title (fr)

PROCEDE DE PRODUCTION DE A-CHLORALKYLPYRIDYLCETONES ET/OU DE LEURS HYDROCHLORURES

Publication

EP 1751110 A1 20070214 (DE)

Application

EP 05761199 A 20050517

Priority

  • EP 2005005331 W 20050517
  • DE 102004024565 A 20040518

Abstract (en)

[origin: WO2005113505A1] A method for the production of unsubstituted or nuclear substituted a-chloroalkylpyridyl ketones and/or the hydrochlorides thereof by reacting the corresponding unsubstituted or nuclear substituted alkylpyridyl ketone hydrochlorides with sulfuryl chloride at a reaction temperature of -25 to 70 DEG C (248 - 343 K) and a pressure of 0.05 0.2 MPa abs, wherein the reaction is carried out in the presence of a non-branched or branched, unsubstituted C1- C10 alkanic acid or C1- C10 alkanic acid which is monosubstituted or fully substituted with a radical selected from the group consisting of fluorine, chlorine and bromine, whose melting point is lower than the selected reaction temperature.

IPC 8 full level

C07D 213/50 (2006.01); C07D 213/61 (2006.01); C07D 213/74 (2006.01); C07D 471/04 (2006.01)

CPC (source: EP US)

C07D 213/50 (2013.01 - EP US); C07D 213/61 (2013.01 - EP US); C07D 213/74 (2013.01 - EP US); C07D 471/04 (2013.01 - EP US)

Citation (search report)

See references of WO 2005113505A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005113505 A1 20051201; CN 1956957 A 20070502; DE 102004024565 A1 20051215; EP 1751110 A1 20070214; JP 2007538032 A 20071227; US 2008255364 A1 20081016

DOCDB simple family (application)

EP 2005005331 W 20050517; CN 200580016181 A 20050517; DE 102004024565 A 20040518; EP 05761199 A 20050517; JP 2007517067 A 20050517; US 57991505 A 20050517