COPPER(I) IODIDE ASSISTED REACTION OF NONACTIVATED IODOARENES WITH SODIUM TRIFLUOROACETATE IN HEXAMETHYLPHOSPHORIC TRIAMIDE. NUCLEAR TRIFLUOROMETHYLATION AND DIARYL ETHER FORMATION
作者:Hitomi Suzuki、Yoshiki Yoshida、Atsuhiro Osuka
DOI:10.1246/cl.1982.135
日期:1982.1.5
Polymethyliodobenzenes react with sodium trifluoroacetate, in tine presence of copper(I) iodide, in hexamethylphosphoric triamide at 150–180°C, giving a mixture of the corresponding polymethylbenzotrifluoride, parent hydrocarbon, and bis(polymethylphenyl) ether.
A process for the preparation of linear alpha olefins having 2n carbon atoms from linear alpha olefins having n carbon atoms comprising the steps of (a) dimerizing a linear alpha olefin having n carbon atoms in the presence of a dimerization catalyst to produce a linear internal olefin having 2n carbon atoms; (b)(i) reacting the linear internal olefin having 2n carbon atoms produced in step (a) with a trialkylaluminium compound in the presence of a catalytic amount of an isomerization/displacement catalyst in order to cause isomerization of the linear internal olefin and to displace alkyl group(s) from said trialkylaluminium compound to form an alkyl aluminium compound wherein at least one of the alkyl groups bound to aluminium is a linear alkyl which has been derived from the isomerization of said linear internal olefin; and (b)(ii) reacting said alkyl aluminium compound with an alpha olefin optionally in the presence of a displacement catalyst so as to displace said linear alkyl from said alkyl aluminium compound to form a linear alpha olefin having 2n carbon atoms.
[EN] APPARATUS FOR AND PROCESS OF MAKING PSEUDOIONONE AND HYDROXY PSEUDOIONONE<br/>[FR] APPAREIL ET PROCÉDÉ DE PRODUCTION DE PSEUDOIONONE ET D'HYDROXY PSEUDOIONONE
申请人:BASF SE
公开号:WO2020099461A1
公开(公告)日:2020-05-22
The invention relates to an apparatus (1) for producing pseudoionone and hydroxy pseudoionone. It suggests an apparatus (1) comprising first and second substantially vertically oriented reactor chambers oriented such that components flow through the first and second reactor chambers in different directions, wherein the first reactor chamber (13) is configured to receive a first component feed (C1) containing a first aqueous mixture through an inlet (15), and to produce a second aqueous mixture, and wherein the apparatus (1) comprises a mixing device (17) positioned downstream of the first component feed inlet (15)and configured to add a second component feed (C2) to the first component feed (C1) when the second aqueous mixture has formed, and the second reactor chamber (23) is configured to receive the first and second component feeds unified in the mixing device (17) from the first reactor chamber (13) and to produce a third aqueous mixture from the first and second aqueous mixtures. The invention further suggests a method and a use for producing pseudoionone and hydroxy pseudoionone.
[EN] PROCESS OF MAKING PSEUDOIONONE AND HYDROXY PSEUDOIONONE IN AQUEOUS MIXTURES COMPRISING CITRAL AND ACETONE, COMPRISING ADDING FIRST AND SECOND AMOUNTS OF HYDROXIDE<br/>[FR] PROCÉDÉ DE FABRICATION DE PSEUDOIONONE ET D'HYDROXY PSEUDOIONONE DANS DES MÉLANGES AQUEUX CONTENANT DU CITRAL ET DE L'ACÉTONE, COMPRENANT L'AJOUT DE PREMIÈRE ET SECONDE QUANTITÉS D'HYDROXYDE
申请人:BASF SE
公开号:WO2020099452A1
公开(公告)日:2020-05-22
Described is a process of making pseudoionone and hydroxy pseudoionone comprising the steps of (i) preparing a first aqueous mixture comprising first concentrations of acetone, citral and hydroxide, (ii) producing a second aqueous mixture by allowing to react for a reaction time the components of the first aqueous mixture and (iii) producing a third aqueous mixture by adding to the second aqueous mixture a second amount of hydroxide so that an additional amount of pseudoionone is formed in the third aqueous mixture. The invention further suggests an apparatus for making pseudoionone and hydroxy pseudoionone as well as to a respective process and use of said apparatus in making pseudoionone and hydroxy pseudoionone.
2-acylindenes and these containing perfume compositions
申请人:PFW AROMA CHEMICALS B.V.
公开号:EP1184363A1
公开(公告)日:2002-03-06
The invention relates to new chemical compounds useful as perfumes or as components of perfumes. More specifically it relates to alkyl-substituted 2-acylindenes and isomeric mixtures thereof, as well as to perfume compositions comprising said compounds. Furthermore, the invention relates to the use of said compounds and methods of making said compounds.