Global Patent Index - EP 1042282 A1

EP 1042282 A1 2000-10-11 - METHOD FOR PREPARING AROMATIC THIOLS AND DERIVATIVES, REAGENTS, INTERMEDIATE PRODUCTS AND METHOD FOR OBTAINING THEM

Title (en)

METHOD FOR PREPARING AROMATIC THIOLS AND DERIVATIVES, REAGENTS, INTERMEDIATE PRODUCTS AND METHOD FOR OBTAINING THEM

Title (de)

VERFAHREN ZUR HERSTELLUNG VON AROMATISCHEN THIOLEN UND DERIVATEN, REAGENZIEN UND ZWISCHENPRODUKTE ZU IHRER HERSTELLUNG

Title (fr)

PROCEDE DE PREPARATION DE THIOLS AROMATIQUES ET DERIVES, REACTIFS, PRODUITS INTERMEDIAIRES ET LEUR PROCEDE D'OBTENTION

Publication

EP 1042282 A1 (FR)

Application

EP 98963591 A

Priority

  • FR 9802825 W
  • FR 9716257 A

Abstract (en)

[origin: FR2772757A1] S-Aryl thiocarbamate compounds (I) and O-aryl thiocarbamate compounds (II), all containing at least one amino group and at least one electron-withdrawing group, are new. Also claimed is the preparation of aromatic thiols (III) containing at least one amino group from (I). (I) and (II) are preferably of formulae (I') and (II') respectively. A = residue of a ring forming all or part of a mono- or polycyclic aromatic or heteroaromatic ring system; R = H or hydrocarbyl; X1 = electron-withdrawing group; X2 = H or a substituent; Z = group containing a doublet donor atom bonded to the C bearing S in (II') or O in (I'); n = number of X2 substituents. Claimed preparation of (I) involves heating (II); and claimed preparation of (II) involves reacting aromatic hydroxy compounds bearing at least one amino or nitro group with Y-CS-Z (Y = leaving group) then reducing any nitro groups.

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

C07C 333/04; C07C 323/34; C07C 319/02; C07C 323/35; C07C 319/14

IPC 8 full level (invention and additional information)

C07B 45/06 (2006.01); C07C 319/02 (2006.01); C07C 319/14 (2006.01); C07C 323/34 (2006.01); C07C 323/35 (2006.01); C07C 333/04 (2006.01)

CPC (invention and additional information)

C07C 319/02 (2013.01); C07B 45/06 (2013.01); C07C 333/04 (2013.01)

Combination set (CPC)

C07C 319/02 + C07C 323/34

Designated contracting state (EPC)

BE CH DE FR GB IE IT LI

EPO simple patent family

FR 2772757 A1 19990625; FR 2772757 B1 20010525; AU 1881199 A 19990712; EP 1042282 A1 20001011; JP 2002512174 A 20020423; WO 9932440 A1 19990701

INPADOC legal status


2002-08-28 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011228

2001-08-08 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010625

2000-10-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000605

2000-10-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE CH DE FR GB IE IT LI