Global Patent Index - EP 1028937 A1

EP 1028937 A1 2000-08-23 - METHOD FOR PRODUCING AROMATIC NITRO COMPOUNDS

Title (en)

METHOD FOR PRODUCING AROMATIC NITRO COMPOUNDS

Title (de)

VERFAHREN ZUR HERSTELLUNG AROMATISCHER NITROVERBINDUNGEN

Title (fr)

PROCEDE DE PRODUCTION DE COMPOSES NITRES AROMATIQUES

Publication

EP 1028937 A1 (DE)

Application

EP 98952730 A

Priority

  • DE 19748360 A
  • DE 19808748 A
  • EP 9806688 W

Abstract (en)

[origin: US6242657B1] In the reaction of aromatic compounds with nitrating acids comprising HNO3 and, if appropriate, H2SO4 and/or H2O and/or H3PO4 to form aromatic nitro compounds, according to the invention an amount of from 0.5 to 20,000 ppm of one or more surface-active substances from the group of the anionic, cationic, zwitterionic or nonionic surface-active substances is added to the reaction mixture.

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

C07C 201/08; C07B 43/02; C07C 205/06; C07C 205/12; C07C 209/76

IPC 8 full level (invention and additional information)

C07B 43/02 (2006.01); C07B 61/00 (2006.01); C07C 201/08 (2006.01); C07C 205/06 (2006.01); C07C 205/12 (2006.01); C07C 209/76 (2006.01); C07C 211/52 (2006.01)

CPC (invention and additional information)

C07C 201/08 (2013.01); C07B 43/02 (2013.01)

Combination set (CPC)

  1. C07C 201/08 + C07C 205/06
  2. C07C 201/08 + C07C 205/12

Citation (search report)

See references of WO 9923061A1

Designated contracting state (EPC)

AT BE CH DE ES FI FR GB IE IT LI NL PT SE

EPO simple patent family

US 6242657 B1 20010605; AU 1031599 A 19990524; AU 741332 B2 20011129; BR 9814108 A 20001003; CA 2308288 A1 19990514; CN 1277601 A 20001220; EP 1028937 A1 20000823; HU 0100200 A2 20010528; HU 0100200 A3 20020328; ID 24977 A 20000831; IL 135402 D0 20010520; JP 2001521920 A 20011113; MX PA00003884 A 20010101; NO 20002247 A 20000428; NO 20002247 D0 20000428; PL 340030 A1 20010115; SK 6202000 A3 20010118; TW 466223 B 20011201; WO 9923061 A1 19990514

INPADOC legal status


2003-10-29 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030423

2001-11-28 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20011016

2000-08-23 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000605

2000-08-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE ES FI FR GB IE IT LI NL PT SE

2000-08-23 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: RO PAYMENT 20000605