Abstract:
The present invention concerns a method of oxidizing a cycloalkane to form a product mixture containing a corresponding alcohol and ketone, said method comprising contacting a cycloalkane with an oxidant agent in the presence of catalytic effective amount of metal triflates or metal triflmidates catalysts.
Abstract:
The invention relates to a method for oxidizing substrates such as hydrocarbons, waxes or soot. The method involves the use of a compound of formula (I) in which: R and R represent H, an aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radical or hydrocarbon radical, each having 1 to 20 hydrocarbon atoms, SO3H, NH2, OH, F, Cl, Br, I and/or NO2, whereby R and R designate identical or different radicals or R and R can be linked to one another via a covalent bonding; Q1 and Q2 represent C, CH, N, CR , each being the same or different; X and Z represent C, S, CH2, each being the same or different; Y represents O and OH; k = 0, 1, 2; l = 0, 1, 2; m = 1 to 3, and; R represents one of the meanings of R . Said compound is used as a catalyst in the presence of a radical initiator, whereby the molar ratio of the catalyst to the hydrocarbon is less than 10 mol %. Peroxy compounds or azo compounds can be used as the radical initiator. Preferred substrates are aliphatic or aromatic hydrocarbons.
Abstract:
The invention relates to a method for oxidizing substrates such as hydrocarbons, waxes or soot. The method involves the use of a compound of formula (I) in which: R and R represent H, an aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radical or hydrocarbon radical, each having 1 to 20 hydrocarbon atoms, SO3H, NH2, OH, F, Cl, Br, I and/or NO2, whereby R and R designate identical or different radicals or R and R can be linked to one another via a covalent bonding; Q1 and Q2 represent C, CH, N, CR , each being the same or different; X and Z represent C, S, CH2, each being the same or different; Y represents O and OH; k = 0, 1, 2; l = 0, 1, 2; m = 1 to 3, and; R represents one of the meanings of R . Said compound is used as a catalyst in the presence of a radical initiator, whereby the molar ratio of the catalyst to the hydrocarbon is less than 10 mol %. Peroxy compounds or azo compounds can be used as the radical initiator. Preferred substrates are aliphatic or aromatic hydrocarbons.
Abstract:
The invention concerns perfumes and perfumed products comprising 3-alkylcycloalkan-1-ols of formula (I), wherein R1 represents hydrogen or a methyl, ethyl or propyl group; R2, R4 and R5 independently represent hydrogen or a methyl group; R3 represents a saturated hydrocarbon group with 4-8 carbon atoms, provided that the first carbon atom of this hydrocarbon group is not a tertiary carbon atom, and n represents the numbers 1, 2 and 3. The invention also concerns compounds of formula (I) wherein R1 represents a methyl, ethyl or propyl group and R2-R5 are as outlined above.
Abstract translation:本发明涉及包含式(I)的3-烷基环烷-1-醇的香料和香料,其中R1代表氢或甲基,乙基或丙基; R2,R4和R5独立地表示氢或甲基; R 3表示具有4-8个碳原子的饱和烃基,条件是该烃基的第一个碳原子不是叔碳原子,n表示数字1,2和3.本发明还涉及式(I )其中R1表示甲基,乙基或丙基,R2-R5如上所述。
Abstract:
A method for the preparation of cyclopropyl carbinols by cyclopropanation of unsaturated alcoholates, utilising a reagent system selected from (A) magnesium metal and dibromomethane, and (B) dibromomethane and a tertiary Grignard reagent, the reaction being carried out in the presence of an ether solvent. The process is useful, for example, for the preparation of ingredients for the flavour and fragrance industry.
Abstract:
Ketones and aldehydes are hydrogenated to the corresponding alcohol of alkyl group, using H2 gas as the stoichiometric reductant, and a ruthenium- or iron-containing catalyst precursor having the formula {[CpM(CO)2]2( mu -H+Q-, wherein M is selected from the group consisting of Ru and Fe; Cp is an optionally substituted cyclopentadienyl group; and Q- is a non-coordinating or weakly coordinating non-reactive anion.
Abstract:
Ketones and aldehydes are hydrogenated to the corresponding alcohol or alkyl group, using H2 gas as the stoichiometric reductant, and organometallic ruthenium complexes as the catalysts.