1,4-Addition of phosphonacetate esters to 6,10-dimethyl-3-undecen-2-one and 10-methoxy-6,10-dimethyl-3-undecen.-2-one under horner-emmons reaction conditions in a superbasic medium
The present invention pertains to pro-fragrances and relates to a pro-fragrance compound of the formula (I). Furthermore, the invention relates to compositions, a laundry product, a home care product, and an insect repellant, comprising the compound of formula (I). Also encompassed are a method for preparing the compound of formula (I) and uses of a compound of formula (I) for increasing the longlastingness of a fragrance, for increasing the stability and perception of a fragrance, and for improving the adhesion of a fragrance to textiles.
Aliphatic hydrocarbon 2,4-dienoic acids, esters and derivatives thereof
申请人:Zoecon Corporation
公开号:US04021461A1
公开(公告)日:1977-05-03
Novel aliphatic hydrocarbon di-olefinic acids, esters, thiolesters, and derivatives thereof, intermediates therefor, syntheses thereof and the control of insects.
新型脂环烃二烯酸、酯、硫酯及其衍生物,以及其中间体、合成方法和对昆虫的控制。
[EN] (6R,10R)-6,10,14-TRIMETYLPENTADECAN-2-ONE PREPARED FROM 3,7-DIMETYLOCT-2-ENAL OR 3,7-DIMETYLOCTA-2,6-DIENAL<br/>[FR] (6R,10R)-6,10,14-TRIMÉTHYLPENTADÉCAN-2-ONE PRÉPARÉE À PARTIR DE 3,7-DIMÉTHYLOCT-2-ÉNAL OU 3,7-DIMÉTHYLOCTA-2,6-DIÉNAL
申请人:DSM IP ASSETS BV
公开号:WO2014096063A1
公开(公告)日:2014-06-26
The present invention relates to a process of manufacturing (6R,10R)-6,10,14-trimetylpentadecan-2-one in a multistep synthesis from 3,7-dimetyloct-2-enal or 3,7-dimetylocta-2,6-dienal. The process is very advantageous in that it forms the desired chiral product from a mixture of stereoisomers of the starting product in an efficient way.
[EN] (6R,10R)-6,10,14-TRIMETYLPENTADECAN-2-ONE PREPARED FROM (R)-3,7-DIMETYLOCT-6-ENAL<br/>[FR] (6R,10R)-6,10,14-TRIMÉTHYLPENTADÉCAN-2-ONE PRÉPARÉE À PARTIR DE (R)-3,7-DIMÉTHYLOCT-6-ÉNAL
申请人:DSM IP ASSETS BV
公开号:WO2014096066A1
公开(公告)日:2014-06-26
The present invention relates to a process of manufacturing (6R,10R)-6,10,14-trimetylpentadecan-2-one in a multistep synthesis from (R)-3,7-dimethyloct-6-enal. The process is very advantageous in that it forms in an efficient way the desired chiral product from a mixture of stereoisomers of the starting product.
[EN] PROCESS OF ASYMMETRIC HYDROGENATION OF KETALS AND ACETALS<br/>[FR] PROCÉDÉ D'HYDROGÉNATION ASYMÉTRIQUE DE CÉTALS ET D'ACÉTALS
申请人:DSM IP ASSETS BV
公开号:WO2014096096A1
公开(公告)日:2014-06-26
The present invention relates to a process of the asymmetric hydrogenation of a ketal of an unsaturated ketone or an acetal of an unsaturated aldehyde by molecular hydrogen in the presence of at least one chiral iridium complex. This process yields chiral compounds in a very efficient way and is very advantageous in that the amount of iridium complex can be remarkably reduced.