Topic
Boron trifluoride
About: Boron trifluoride is a research topic. Over the lifetime, 4176 publications have been published within this topic receiving 43265 citations. The topic is also known as: trifluoroboron & boron fluoride.
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TL;DR: In this article, a Keggin-type heteropoly acid has been shown to have high catalytic activities for the cleavage reactions of epoxides, tetrahydrofuran, dibutyl ether and butyl methyl ether with acetic acid, acetic anhydride andbutyl acetate in the non-aqueous homogeneous liquid phase at 30-118 °C.
159 citations
TL;DR: T-butyl 2,2,2-trichloroacetimidate is an efficient reagent for the preparation of t- butyl ethers and esters in the presence of a catalytic amount of boron trifluoride etherate.
152 citations
Patent•
26 Apr 1982TL;DR: In this paper, an improved process for the manufacture of synthetic lubricant additives from olefins having two or three carbon atoms is described, which utilizes boron trifluoride catalysis with a promoter to produce from the C 9 -C 24 internal olefs oligomer mixtures that have surprisingly low viscosities at low temperatures and surprisingly high viscosity indexes as compared with the oligomers found in other methods.
Abstract: An improved process for the manufacture of synthetic lubricant additives from olefins having two or three carbon atoms is described. The low molecular weight olefins are converted to internal olefins having 9 to 24 carbon atoms via isomerization and disproportionation. The process utilizes boron trifluoride catalysis with a promoter to produce from the C 9 -C 24 internal olefins oligomer mixtures that have surprisingly low viscosities at low temperatures and surprisingly high viscosity indexes as compared with the oligomers found in other methods. It is important that internal olefins be used almost exclusively in the second step of the method of this invention.
148 citations
TL;DR: In this article, the stereoselective glycosylation of alcohols and their silyl ethers has been achieved using O-alkyl-, O-acyl-, and acetal-protected glycoly fluorides of the pyranose and furanose series and boron trifluoride etherate in CH2Cl2.
Abstract: The stereoselective glycosylation of alcohols and their silyl ethers has been achieved using O-alkyl-, O-acyl-, and acetal-protected glycosyl fluorides of the pyranose and furanose series and boron trifluoride etherate in CH2Cl2.
146 citations
Patent•
03 Nov 1971TL;DR: In this article, the authors used an ALCOHOLOL-PROMOTED BORON TRIFLUORIDE CATALYST in the reaction liquid phase.
Abstract: OLIGOMERS OF NORMAL -C6-16 ALPHA-OLEFINS AS LUBRICANTS CAN BE MADE BY REACTING C6-16 NORMAL-ALPHA-OLEFINS OR MIXTURES THEREOF AT A TEMPERATURE OF FROM ABOUT 10-60* C. USING AN ALCOHOL-PROMOTED BORON TRIFLUORIDE CATALYST IN WHICH BORON TRIFLUORIDE IS USED IN MOLAR EXCESS OF THE ALCOHOL. PREFERABLY, ADDITIONAL BORON TRIFLUORIDE IS INJECTED INTO THE REACTION LIQUID PHASE DURING THE COURSE OF THE OLIGOMERIZATION. STABILITY OF THE RESULTANT PRODUCT IS IMPROVED BY CATALYTIC HYDROGENATION. THE PRODUCTS HAVE A LOW POUR POINT AND HIGH VISCOSITY INDEX.
144 citations