Global Patent Index - EP 1362022 B1

EP 1362022 B1 20071128 - METHOD FOR PRODUCING ORTHOCARBONIC ACID TRIALKYL ESTERS

Title (en)

METHOD FOR PRODUCING ORTHOCARBONIC ACID TRIALKYL ESTERS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON ORTHOCARBONSÄURETRIALKYLESTERN

Title (fr)

PROCEDE DE PRODUCTION DE TRIALKYLESTERS D'ACIDE ORTHOCARBOXYLIQUE

Publication

EP 1362022 B1 20071128 (DE)

Application

EP 01980340 A 20010905

Priority

  • DE 10043789 A 20000906
  • EP 0110216 W 20010905

Abstract (en)

[origin: WO0220446A1] The invention relates to a method for producing orthocarbonic acid trialkyl esters by electrochemical oxidation of alpha-beta-diketones or alpha-beta-hydroxy ketones in the presence of C1-to C4-alcohols (alcohol A), the keto function being present in the form of a ketal function derived from C1- to C4-alykl alcohols and the hydroxyl function being optionally in the form of an ether function derived from C1- to C4-alykl alcohols (ketal K). The molar ratio of the ketal K to the alcohols A in the electrolytes is 0.2:1 to 10:1.

IPC 8 full level

C07C 43/32 (2006.01); C25B 3/23 (2021.01)

CPC (source: EP US)

C25B 3/23 (2021.01 - EP US)

Designated contracting state (EPC)

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

DOCDB simple family (publication)

WO 0220446 A1 20020314; WO 0220446 A8 20030424; AU 1220502 A 20020322; CA 2421353 A1 20030305; CA 2421353 C 20100713; CN 1249004 C 20060405; CN 1454198 A 20031105; DE 10043789 A1 20020314; DE 50113334 D1 20080110; EP 1362022 A1 20031119; EP 1362022 B1 20071128; ES 2294037 T3 20080401; JP 2004508463 A 20040318; JP 5015406 B2 20120829; NO 20031025 D0 20030305; NO 20031025 L 20030305; US 2003183534 A1 20031002; US 7192512 B2 20070320

DOCDB simple family (application)

EP 0110216 W 20010905; AU 1220502 A 20010905; CA 2421353 A 20010905; CN 01815223 A 20010905; DE 10043789 A 20000906; DE 50113334 T 20010905; EP 01980340 A 20010905; ES 01980340 T 20010905; JP 2002525072 A 20010905; NO 20031025 A 20030305; US 36331703 A 20030303