EP 0000257 B1 19820217 - BENZO(C)PYRAN DERIVATIVES, PROCESS FOR THEIR PREPARATION AND THEIR USE IN PERFUMERY.
Title (en)
BENZO(C)PYRAN DERIVATIVES, PROCESS FOR THEIR PREPARATION AND THEIR USE IN PERFUMERY.
Publication
Application
Priority
- GB 1333878 A 19780405
- GB 2586377 A 19770621
Abstract (en)
[origin: EP0000257A1] Compounds having the formula: <CHEM> wherein X represents a hydrogen atom, an alkyl group m has a value of 0 or 1, n has a value of 1 or 2 and n + m = 2 are prepared by cyclisation of <CHEM> They possess unique floral odours and are useful as ingredients of compounded perfumery compositions. Especially valuable are thos compounds wherein X is hydrogen and n and m have a value of one.
IPC 1-7
IPC 8 full level
C07C 29/14 (2006.01); C07C 29/141 (2006.01); C07C 33/05 (2006.01); C07C 45/69 (2006.01); C07C 47/45 (2006.01); C07D 311/02 (2006.01); C07D 311/76 (2006.01); C11B 9/00 (2006.01)
CPC (source: EP)
C07C 29/141 (2013.01); C07C 45/69 (2013.01); C07C 47/45 (2013.01); C07D 311/76 (2013.01); C11B 9/008 (2013.01); C07C 2601/16 (2017.04)
Designated contracting state (EPC)
BE CH DE FR GB NL SE
DOCDB simple family (publication)
EP 0000257 A1 19790110; EP 0000257 B1 19820217; AU 3733678 A 19800103; AU 517033 B2 19810702; CA 1115284 A 19811229; DE 2861629 D1 19820325; GB 2002358 A 19790221; GB 2002358 B 19820415; JP S549276 A 19790124
DOCDB simple family (application)
EP 78300056 A 19780620; AU 3733678 A 19780621; CA 305619 A 19780616; DE 2861629 T 19780620; GB 7830148 A 19780718; JP 7429778 A 19780621