作者:Ajoy K. Banerjee、Carmen A. Peña-Matheud、María C. de Carrasco
DOI:10.1039/p19880002485
日期:——
Methylation of the α,β-unsaturated ketone (2) in presence of lithium di-isopropylamide and hexamethylphosphoramide complex yielded the methylated ketone (3). Reduction of ketone (3) with sodium borohydride yielded the alcohol (4) whose tosyl derivative (5) on heating with dimethylformamide and lithium bromide afforded the diene (18). Oxidation of (18) with chromic acid produced the dienone (19) and
Naphthalenone Derivative with Powdery-Ionone Type Odors
申请人:Fehr Charles
公开号:US20080214419A1
公开(公告)日:2008-09-04
The present invention relates to a 5,5,8a-trimethyl-naphthalenone derivative which is a useful perfuming ingredient. Furthermore, the present invention concerns also the compositions or articles containing this compound.