Ruthenium-catalyzed direct amination of alcohols with tertiary amines
作者:Jiaying Luo、Mingyue Wu、Fuhong Xiao、Guojun Deng
DOI:10.1016/j.tetlet.2011.03.084
日期:2011.5
A highly selective phosphine-based ruthenium catalyst system efficiently catalyzes the direct amination of alcohols with aliphatic tertiary amines, yielding unsymmetric tertiary amines in yields up to 87%. Ligand and solvent both affect the reaction yields significantly. The reaction can be performed with a wide variety of functionalities.
METHOD FOR PRODUCING GLUCOSE BY ENZYMATIC HYDROLYSIS OF CELLULOSE THAT IS OBTAINED FROM MATERIAL CONTAINING LIGNO-CELLULOSE USING AN IONIC LIQUID THAT COMPRISES A POLYATOMIC ANION
申请人:Balensiefer Tim
公开号:US20100081798A1
公开(公告)日:2010-04-01
The present invention relates to a process for preparing glucose from a lignocellulose-comprising starting material, in which this is firstly treated with an ionic liquid and subsequently subjected to an enzymatic hydrolysis. The invention further relates to a process for preparing microbial metabolites, especially ethanol, in which the glucose obtained is additionally subjected to a fermentation.
[DE] DESTILLATION VON IONISCHEN FLÜSSIGKEITEN<br/>[EN] DISTILLATION OF IONIC LIQUIDS<br/>[FR] DISTILLATION DE LIQUIDES IONIQUES
申请人:BASF AG
公开号:WO2005068404A1
公开(公告)日:2005-07-28
Die Erfindung bezieht sich auf ein Verfahren zur Destillation ionischer Flüssigkeiten, bei welchem in einem Schritt en Druck unterhalb des Umgebungsdruckes eingestellt wird und in einem weitren Schritt die ionische Flüssigkeit auf eine Temperatur im Bereich von 60°C bis 350°C erwärmt wird. Das Verfahren dient insbesondere zur Reinigung ionischer Flüssigkeiten.
A process for preparing siloxy carboxylates is characterized by reaction of C
2
-C
10
-monocarboxylic acids with halosiloxanes of the general formula (I),
Hal-(SiR
2
—O)
x
—SiR
3
(I)
in which
Hal is the same or different and is fluorine, chlorine, bromine or iodine,
R is hydrogen, C
1
-C
10
-alkyl or C
6
-C
14
-aryl and
x is an integer from 1 to 20,
to form hydrogen halide in the presence of an auxiliary base, in which the auxiliary base forms, with the hydrogen halide, a salt which forms two immiscible phases with the siloxy carboxylate or the solution of the siloxy carboxylate in a suitable solvent and is removed by a liquid-liquid separation. The process enables simple and economically viable preparation of siloxy carboxylates.
An object of the present invention is to provide a novel squarylium dye that can achieve an equivalent chromaticity value of even a colored resin composition having a low content of the squarylium dye as compared with a colored resin composition comprising a conventional squarylium dye. The present invention provides a compound represented by the formula (I) wherein R
4
to R
4
each independently represent a hydrogen atom or the like; R
5
to R
8
each independently represent a hydrogen atom or the like; R
9
and R
10
each independently represent a monovalent saturated hydrocarbon group having 1 to 20 carbon atoms or the like; R
11
and R
12
each independently represent a halogen atom or an alkyl halide group having 1 to 6 carbon atoms; and m1 and m2 each independently represent an integer of 1 to 5.