Global Patent Index - EP 1019343 A1

EP 1019343 A1 2000-07-19 - PREPARATION OF 1-(2-METHYLBUTYL)-4-METHYLBENZENE

Title (en)

PREPARATION OF 1-(2-METHYLBUTYL)-4-METHYLBENZENE

Title (de)

HERSTELLUNG VON 1-(2-METHYLBUTYL)-4-METHYLBENZOL

Title (fr)

PREPARATION DE 1-(2-METHYLBUTYL)-4-METHYLBENZENE

Publication

EP 1019343 A1 (EN)

Application

EP 96943148 A

Priority

  • FI 9600699 W
  • FI 956325 A

Abstract (en)

[origin: WO9724305A1] The invention concerns a preparation process for 1-(2-methylbutyl)-4-methylbenzene, in which p-xylene is alkylated with 1-butene using a basic catalyst, which is a zeolite impregnated with an alkali metal, a hydrotalcite on a carrier or CsOH on a carrier. The method is suitable for a continuous process, and a solid bed catalyst can be used. The selectivity of the method is good.

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

C07C 2/72

IPC 8 full level (invention and additional information)

B01J 21/16 (2006.01); B01J 29/08 (2006.01); C07B 61/00 (2006.01); C07C 2/72 (2006.01); C07C 15/02 (2006.01)

CPC (invention and additional information)

C07C 2/72 (2013.01); C07C 2521/04 (2013.01); C07C 2521/08 (2013.01); C07C 2523/04 (2013.01); C07C 2529/06 (2013.01); C07C 2529/08 (2013.01)

Combination set (CPC)

C07C 2/72 + C07C 15/02

Citation (search report)

See references of WO 9724305A1

Designated contracting state (EPC)

DE GB IT

EPO simple patent family

WO 9724305 A1 19970710; AU 1270297 A 19970728; EP 1019343 A1 20000719; FI 956325 A0 19951229; JP 2000502692 A 20000307; KR 100516491 B1 20050914

INPADOC legal status


2003-07-23 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20021220

2001-05-02 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010316

2000-07-19 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19980720

2000-07-19 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE GB IT