Global Patent Index - EP 1255730 A1

EP 1255730 A1 2002-11-13 - METHOD FOR THE PRODUCTION OF NITROETHIONATE

Title (en)

METHOD FOR THE PRODUCTION OF NITROETHIONATE

Title (de)

VERFAHREN ZUR HERSTELLUNG VON NITROETHIONAT

Title (fr)

PROCEDE DE PRODUCTION DE NITRO-ETHIONATE

Publication

EP 1255730 A1 (DE)

Application

EP 01907535 A

Priority

  • DE 10006545 A
  • EP 0101635 W

Abstract (en)

[origin: WO0160787A1] The invention relates to a method for the safe production of nitroethionate, by reaction of 4-nitro-N-methylaniline with 1,3-dioxa-2,4-dithian-2,4-bis dioxide. The method is characterised in that an ether of polyhydric alcohols or a cyclic ether in a nitrile substituted hydrocarbon is chosen as solvent. The risk of localised overconcentration, localised overheating or explosions is avoided by a homogeneous reaction procedure.

IPC 1-7 (main, further and additional classification)

C07C 303/36; C07C 311/24

IPC 8 full level (invention and additional information)

C07C 303/38 (2006.01); C07C 303/36 (2006.01); C07C 311/24 (2006.01)

CPC (invention and additional information)

C07C 303/36 (2013.01)

Combination set (CPC)

C07C 303/36 + C07C 311/24

Citation (search report)

See references of WO 0160787A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0160787 A1 20010823; AU 3547601 A 20010827; DE 10006545 A1 20010816; EP 1255730 A1 20021113; JP 2003524647 A 20030819; US 2003023095 A1 20030130

INPADOC legal status


2004-01-28 [18W] WITHDRAWN

- Effective date: 20031204

2002-11-13 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020710

2002-11-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-11-13 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT PAYMENT 20020710;LV PAYMENT 20020710;MK;RO PAYMENT 20020710;SI PAYMENT 20020710