Global Patent Index - EP 1181264 A1

EP 1181264 A1 20020227 - METHOD FOR PRODUCING 2,2,4,4-TETRA-SUBSTITUTED 1,3,5-CYCLOHEXANETRIONES

Title (en)

METHOD FOR PRODUCING 2,2,4,4-TETRA-SUBSTITUTED 1,3,5-CYCLOHEXANETRIONES

Title (de)

VERFAHREN ZUR HERSTELLUNG VON 2,2,4,4-TETRASUBSTITUIERTEN 1,3,5-CYCLOHEXANTRIONEN

Title (fr)

PROCEDE DE PRODUCTION DE 1,3,5- CYCLOHEXANETRIONES 2,2,4,4-TETRASUBSTITUEES

Publication

EP 1181264 A1 20020227 (DE)

Application

EP 00936762 A 20000519

Priority

  • DE 19925145 A 19990602
  • EP 0004567 W 20000519

Abstract (en)

[origin: WO0075095A1] The invention relates to a method for producing 2,2,4,4 tetra-substituted 1,3,5 - cyclohexanetriones of formula (I), by reacting a cyclobutane-1,3-diones of formula (II) with an O or N nucleophile and a silylation reagent and then subsequently by acetylisation and cyclisation.

IPC 1-7

C07C 45/45; C07C 49/403; C07C 49/39; C07C 49/453; C07C 69/757; C07F 7/18; C07C 67/313; C07C 69/716

IPC 8 full level

C07B 61/00 (2006.01); C07C 45/45 (2006.01); C07C 45/65 (2006.01); C07C 49/39 (2006.01); C07C 49/403 (2006.01); C07C 49/417 (2006.01); C07C 49/453 (2006.01); C07C 67/313 (2006.01); C07C 45/72 (2006.01); C07C 69/716 (2006.01); C07F 7/18 (2006.01)

CPC (source: EP KR US)

C07C 45/45 (2013.01 - KR); C07C 45/455 (2013.01 - EP US); C07C 49/453 (2013.01 - EP US); C07C 67/313 (2013.01 - EP US); C07C 69/716 (2013.01 - EP US); C07F 7/1804 (2013.01 - EP US)

C-Set (source: EP US)

  1. C07C 45/455 + C07C 49/39
  2. C07C 45/455 + C07C 49/403
  3. C07C 67/313 + C07C 69/716
  4. C07C 67/313 + C07C 69/757

Designated contracting state (EPC)

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

DOCDB simple family (publication)

WO 0075095 A1 20001214; AU 5214300 A 20001228; BR 0011111 A 20020219; CA 2375651 A1 20001214; CN 1353685 A 20020612; EP 1181264 A1 20020227; HU P0201400 A2 20020828; HU P0201400 A3 20021228; IL 146573 A0 20020725; JP 2003501408 A 20030114; KR 20020006051 A 20020118; MX PA01012344 A 20020709; US 6559343 B1 20030506

DOCDB simple family (application)

EP 0004567 W 20000519; AU 5214300 A 20000519; BR 0011111 A 20000519; CA 2375651 A 20000519; CN 00808280 A 20000519; EP 00936762 A 20000519; HU P0201400 A 20000519; IL 14657300 A 20000519; JP 2001501577 A 20000519; KR 20017015484 A 20011201; MX PA01012344 A 20000519; US 97999001 A 20011129