Abstract:
The invention relates to a method for producing functionalised monomers, the method comprising: a) providing a starting material selected from terpenes and terpenoids; b) forming a derivative of the starting material by incorporation of a hydroxyl group; c) esterifying the hydroxyl group of the derivative to introduce a moiety containing a vinyl group, so as to produce a functionalised monomer. The functionalised monomer can be polymerised to obtain a bio-derived polymer.
Abstract:
The present invention provides a process for the preparation of (l S,3S,5S)-2-[(2S)-2- amino-2-(3 -hydroxyadamantan- l-yl)acetyl]-2-azabicyclo[3.1.0]hexane-3-carbonitrile and its pharmaceutically acceptable salts thereof, represented by the compound of formula- 1.
Abstract:
A process for the preparation of alcohols represented by general formula (3) (wherein R is nonaromatic hydrocarbyl which is bonded to the carbonyl group at the site of a tertiary carbon atom; R is hydrogen or hydrocarbyl; and R is a hydrocarbon group) by reacting a carbonyl compound represented by general formula (1) (wherein R and R are each as defined above) with an organotitanium compound represented by general formula (2) (wherein R is as defined above; L is a ligand; and n is an integer of 1 to 4); and a process for the preparation of adamantanemethanol derivatives represented by general formula (6) (wherein R is C1-C6 alkyl; and the adamantane ring may be substituted) by reacting a 1-adamantanecarboxylic acid derivative represented by general formula (4) (wherein R is hydrogen or hydrocarbyl; and the adamantane ring may be substituted) with an organomagnesium compound represented by general formula (5) (wherein R is as defined above; and X is halogeno).
Abstract translation:一种制备由通式(3)表示的醇的方法(其中R 1是在叔碳原子位置与羰基键合的非芳族烃基; R 2是氢或烃基; R 通过使通式(1)表示的羰基化合物(其中R 1和R 2各自如上定义)与通式(2)表示的有机钛化合物(其中, R 3如上定义; L是配体; n是1至4的整数); 以及通式(4)所示的1-金刚烷羧酸衍生物(4)所示的通式(6)表示的金刚烷甲醇衍生物(其中,R 5为C 1〜C 6烷基,金刚烷环可以被取代) )(其中R 4是氢或烃基,并且金刚烷环可以被取代)与通式(5)表示的有机镁化合物(其中R 5如上所定义,X是卤代)。
Abstract:
The present invention relates to some sandalwood perfuming ingredients, which are 2-[perhydro-trialkyl-2-naphthalenylidene]-1-propanol or propanal derivatives of formula wherein one dotted line represents a carbon-carbon single bond and the other a carbon- carbon single bond or double bond; X represents a CH2OH group or a CHO group; each R1 represents a hydrogen atom or a methyl group; and the R2, taken separately, represent each a hydrogen atom or the two R2 groups, taken together, represent a CH2 group or a carbon-carbon double bond; and said compound is in the form of any one of its stereoisomers or a mixture thereof. The present invention concerns the use of said compounds in the perfumery industry as well as the compositions or articles containing said compounds.
Abstract:
L'invention a pour objet de nouveaux composés de formule (I) dans laquelle la liaison en pointillé est présente ou non, et dans laquelle R 1 représente: - lorsque la liaison en pointillé est présente -CHCH 3 OH ou -CHCH 3 OCOR ou -CHCH 3 XCH 2 CHOHR' ou -CHCH 3 OCHR'CH 2 OH ou formule (II) - lorsque la liaison en pointillé est absente -CHCH 3 OH ou -CHCH 3 OCOR ou -COCH 3 ou formule (II) ou -CHCH 3 XCH 2 CHOHR' ou -CH 2 CH 2 XCH 2 CHOHR' ou -CHCH 3 OCHR'CH 2 OH ou -CHCHCOR'ou CH 2 CH 2 CHR'OH ou -CH 2 CH 2 CHR'OCOR ou -CHCHCHOHR' ou -CHCHCHR'OCOR, dans lesquelles R représente H, Me, Et, Pr, isoPr, But, isoBut, CH 3 (CH 2 ) 4 , (CH 3 ) 2 CHCH 2 , CH 2 CH, (CH 3 ) 2 CCH, et R' représente H, Me ou Et, et X représente O, N ou S, et leurs procédés de préparation. En raison de leur odeur, ces composés présentent un grand intérêt en parfumerie, pour les produits cosmétiques et produits d'entretien.
Abstract:
Higher diamondoid derivatives capable of taking part in polymerization reactions are disclosed as are intermediates to these derivatives, polymers formed from these derivatives and methods for preparing the polymers.
Abstract:
The invention is directed to a process for reducing or reductively cleaving an organic compound susceptible to dissolving metal reduction comprising exposing the organic compound to a solution of lithium in a polyamine including at leat two amino groups, selected from the group consisting of primary and secondary amino groups and mixtures thereof, e.g. ethylenediamine and R-NH2, optionally containing a lower alkyl alcohol, wherein R is chosen from the group consisting of ethyl, propyl, and butyl, including all straight and branched chain isomers thereof, for a time sufficient to effect reduction.
Abstract:
The invention relates to novel odorants derived from formylpinane. In particular, these are compounds of general formula (I), in which R represents H or C1-C4 alkyl, for example methyl, ethyl, propyl, butyl etc., preferably methyl or ethyl, n represents 0 or 1 and the notation - &cir& _- &cir& _- &cir& _- &cir& _ represents a single or double bond.
Abstract:
The present invention provides a process for the preparation of (l S,3S,5S)-2-[(2S)-2- amino-2-(3 -hydroxyadamantan- l-yl)acetyl]-2-azabicyclo[3.1.0]hexane-3-carbonitrile and its pharmaceutically acceptable salts thereof, represented by the compound of formula- 1.