[EN] NON-CYCLIC HINDERED KETONES AS PERFUMING INGREDIENT<br/>[FR] CETONES NON CYCLIQUES ENTRAVES EN TANT QU'INGREDIENT DE PARFUMERIE
申请人:FIRMENICH & CIE
公开号:WO2005110961A1
公开(公告)日:2005-11-24
The present invention relates to the use as perfuming ingredient of a compound of formula (I) wherein R represents a hydrogen atom or a methyl or ethyl group, and R1 represents (i) a (Me)(R2)C=C(R3) group, R2 representing a hydrogen atom or a methyl group and R3 representing a methyl or ethyl group, or (ii) a phenyl group optionally substituted by one or two methyl groups; as well as to the compositions or articles associated with said compound.
Reductive cleavage of 2-methyleneoxetanes with lithium and 4,4′-di-tert-butylbiphenyl
作者:Mehrnoosh Hashemzadeh、Amy R. Howell
DOI:10.1016/s0040-4039(00)00059-9
日期:2000.3
3-Dimethyl-2-methylene-4-phenyloxetane (5) undergoes reductivecleavage with lithium and 4,4′-di-tert-butylbiphenyl (DTBB) to give an intermediate dianion, which reacts regioselectively with aldehydes and ketones to give aldol adducts in modest yields. Alternatively, the enolate can be trapped with TMSCl to give the corresponding silyl enol ether.
Non-cyclic hindered ketones as perfuming ingredient
申请人:Gaudin Jean-Marc
公开号:US20070021320A1
公开(公告)日:2007-01-25
The present invention relates to the use as perfuming ingredient of a compound of formula
wherein R represents a hydrogen atom or a methyl or ethyl group, and
R
1
represents (i) a (Me)(R
2
)C═C(R
3
) group, R
2
representing a hydrogen atom or a methyl group and R
3
representing a methyl or ethyl group, or (ii) a phenyl group optionally substituted by one or two methyl groups; as well as to the compositions or articles associated with these compounds.
Araliphatische Oxime, Verfahren zu deren Herstellung und Riechstoffkompositionen mit einem Gehalt an solchen Verbindungen
申请人:L. GIVAUDAN & CIE Société Anonyme
公开号:EP0191365A1
公开(公告)日:1986-08-20
Die Erfindung betrifft neue Riechstoffe, und zwar neue Oxime der Formel
worin R Wasserstoff, Methyl oder Äthyl ist.
Die Erfindung betrifft auch ein Verfahren zur Herstellung der neuen Oxime I.
Die Erfindung betrifft auch die Verwendung von I als Riechstoffe und Riechstoffkompositionen, die durch einen Gehalt an Verbindungen I gekennzeichnet sind.
本发明涉及新香水,即式中 R 为氢、甲基或乙基的新肟。 本发明还涉及制备新肟 I 的工艺。本发明还涉及将 I 用作香水和以含有化合物 I 为特征的香水组合物。
Working fluid composition for use in refrigeration system
申请人:Kao Corporation
公开号:EP0521650A1
公开(公告)日:1993-01-07
A working fluid composition for use in a refrigeration system which comprises a refrigerating oil comprising a compound having one or more ketone groups in the molecular structure as a base oil and a hydrofluorocarbon.