EP 0100822 B1 19860305 - PROCESS FOR PRODUCING CYCLOPENTADEC-4-YNONE AND ITS HOMOLOGOUS 3-METHYL
Title (en)
PROCESS FOR PRODUCING CYCLOPENTADEC-4-YNONE AND ITS HOMOLOGOUS 3-METHYL
Publication
Application
Priority
CH 407882 A 19820705
Abstract (en)
[origin: US4448650A] The macrocyclic acetylenic ketones of formula <IMAGE> (I) wherein symbol R designates a hydrogen atom or a methyl radical are prepared by an anodic oxidation of a hydrazone of formula <IMAGE> (II) wherein R has the above given meaning and A represents a hydrogen atom or a sulfonyl radical of formula R1-SO2-, wherein R1 stands for a substituted or unsubstituted aryl group. Compounds (I) are useful industrial intermediates for the preparation of EXALTONE TM and muscone, two musk ingredients widely used in the perfume industry.
IPC 1-7
IPC 8 full level
C07C 45/00 (2006.01); C07C 49/587 (2006.01); C07C 67/00 (2006.01); C25B 3/23 (2021.01)
CPC (source: EP US)
C25B 3/23 (2021.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI NL
DOCDB simple family (publication)
EP 0100822 A1 19840222; EP 0100822 B1 19860305; DE 3362401 D1 19860410; JP S5937349 B2 19840908; JP S599183 A 19840118; US 4448650 A 19840515
DOCDB simple family (application)
EP 83104893 A 19830518; DE 3362401 T 19830518; JP 11028183 A 19830621; US 49805083 A 19830525