Global Patent Index - EP 1071651 A1

EP 1071651 A1 2001-01-31 - METHOD FOR THE PRODUCTION OF DIBENZYL CARBONATES

Title (en)

METHOD FOR THE PRODUCTION OF DIBENZYL CARBONATES

Title (de)

VERFAHREN ZUR HERSTELLUNG VON DIBENZYLCARBONATEN

Title (fr)

PROCEDE DE PREPARATION DE CARBONATES DE DIBENZYLE

Publication

EP 1071651 A1 (DE)

Application

EP 99919186 A

Priority

  • DE 19816497 A
  • EP 9902287 W

Abstract (en)

[origin: DE19816497A1] Dibenzyl carbonates are produced by reacting a dialkyl carbonate with a benzyl alcohol in the presence of a basic catalyst and by separating slightly volatile constituents of the reaction mixture and the catalyst. The inventive method enables benzyl carbonates to be produced in a simple manner, provides good yields and does not require any particularly technical safety arrangements.

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

C07C 68/06

IPC 8 full level (invention and additional information)

C07B 61/00 (2006.01); C07C 68/06 (2006.01); C07C 69/96 (2006.01)

CPC (invention and additional information)

C07C 68/06 (2013.01)

Combination set (CPC)

C07C 68/06 + C07C 69/96

Citation (search report)

See references of WO 9952853A1

Designated contracting state (EPC)

BE CH DE ES FR GB IT LI NL PT

EPO simple patent family

DE 19816497 A1 19991021; AU 3705199 A 19991101; EP 1071651 A1 20010131; JP 2002511443 A 20020416; US 6350893 B1 20020226; WO 9952853 A1 19991021

INPADOC legal status


2004-11-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040504

2004-01-07 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: BAYER CHEMICALS AG

2003-03-05 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030115

2001-01-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001114

2001-01-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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