EP 2483258 A1 20120808 - PROCESS FOR PREPARING 1,2,6,7-TETRAHYDRO-8H-INDENO[5,4-B]FURAN-8-ONE
Title (en)
PROCESS FOR PREPARING 1,2,6,7-TETRAHYDRO-8H-INDENO[5,4-B]FURAN-8-ONE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON 1,2,6,7-TETRAHYDRO-8H-INDEN[5,4-B]FURAN-8-ON
Title (fr)
PROCÉDÉ DE PRÉPARATION DE 1,2,6,7-TÉTRAHYDRO-8H-INDENO[5,4-B]FURAN-8-ONE
Publication
Application
Priority
- EP 09171564 A 20090929
- EP 2010005941 W 20100929
- EP 10763319 A 20100929
Abstract (en)
[origin: WO2011044990A1] The invention provides a process for preparing 1,2,6,7-tetrahydro-8H-indeno-[5,4-b]furan-8-one (I), said process comprising the steps: (i) subjecting 6-hydroxy-7-allyl-indan-1-one to ozonolysis followed by reduction in the presence of methanol to form 2-methoxy-1,2,6,7-tetrahydro-8H-indeno[5,4-b]furan-8-one; (ii) subjecting 6-hydroxy-7-allyl-indan-1-one to alcohol elimination to form 6,7-dihydro-8H-indeno-[5,4-b]furan-8-one; and (iii) subjecting 6,7-dihydro-8H-indeno-[5,4-b]furan-8-one to hydrogenation to obtain 1,2,6,7-tetrahydro-8H-indeno[5,4-b]furan-8-one.
IPC 8 full level
C07D 307/93 (2006.01)
CPC (source: EP)
C07D 307/93 (2013.01)
Citation (search report)
See references of WO 2011044990A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2011044990 A1 20110421; CN 102648192 A 20120822; CN 102648192 B 20150826; EP 2483258 A1 20120808
DOCDB simple family (application)
EP 2010005941 W 20100929; CN 201080042317 A 20100929; EP 10763319 A 20100929