Triethyl borate

Tricyclo[5.2.1,02-6]decane-4,8-dimethanol, b202 3-Triethoxysilylpropylamine, a273 Triethyl borate, t268... 

Using 10% of DTBB as electron carrier, 2,5-disubstituted chlorocyclopentanes 6 were lithiated, the corresponding organolithium intermediates having being employed for the preparation of boronic esters 7, after reaction with triethyl borate and the corresponding 1,3-diol (Scheme 4). ... 

Table II summarizes the existing studies of ionic criticality and lists the critical parameters. In the following, we will focus on results for immis-cibilities which seem to be primarily driven by Coulombic interactions, as exemplified by Pitzer s system n-hexyl-triethylammonium n-hexyl-triethyl-borate (HexEt3N+HexEt3B ) + diphenylether [35], solutions of Bu4NPic in alcohols [87], and solutions of Na in NH3 [46],...

Tridecylbenzene, pi 56 3-Triethoxysilylpropylamine, a279 Triethyl borate, t260... 

Triethylamine hydrogen peroxidate, 2565 Triethylammonium nitrate, 2575 Triethylantimony, 2569 Triethylarsine, 2552 Triethylbismuth, 2556 Triethylborane, 2554 f Triethyl borate, 2555... 

Most of the published syntheses of XIV have been previously summarized (2). One of the more practical large-scale syntheses of XIV in high purity is the one outlined in Figures 3 and 4, which is based on an earlier synthesis by Jacobson and co-workers (41 see also 20b). Thus the diol is converted to the bromohydrin VI by reaction with aqueous HBr in a two-phase system. The crude product is purified by conversion of the alcohol group to a non-volatile borate ester with triethyl borate and removal of the 1,8-dibromooctane by distillation. After hydrolysis of the borate any residual diol is removed by extraction with water. 

Organboranes such as sodium tetraethyl borate, lithium phenyl triethyl borate, and tetramethylammonium phenyl triethyl borate were prepared by Kneafsey [2] and Maandi [3], respectively, and used as initiators and adhesive agents for low surface energy substrates. 

The first organic compound of boron was isolated by Frankland in 1862, by the interaction of zinc methyl and triethyl borate. This method and the use of zinc alkyls with boron trichloride was continued until the discovery of the Grignard reagent. In 1900 boron tri-methyl was prepared by the action of magnesium methyl iodide on trimethyl borate, and in 1921 a number of boron trialkyls were obtained by the interaction of magnesium alkyl halides and boron trifluoride. Of the derivatives of the type RgB, boron trimethyl is a gas, spontaneously inflammable in air boron triethyl, a spontaneously inflammable liquid whilst the higher members of the series are liquids, readily oxidised when exposed to air. The metl yL fpd ethyl derivatives combine with ammonia to foriii IliS type I BOH only... 

Boron trimethyl, McsB.— This compound was first obtained by the interaction of zinc method and triethyl borate. It has more recently been prepared by the interaction of magnesium methyl iodide and trimethvi borate. ... 

Synthesis of 2-monoglycerides. Boric acid is recommended for removal of the 1,3-benzylidene group from l,3-benzyUdene-2-acyl glycerols. The derivative is heated in triethyl borate with finely powdered boric acid until conversion to the diborate ester is complete and this is then hydrolyzed with water, for example to 2-monoolein. 

---