(0.058 mole). Acetylene was added without stirring to a pressure of 100 p.s.i.g. For the higher energy fuels of the present invention, the local fuel to air ratio in the zone of fuel injection should also be approximately stoichiometric, assuming that the boron, carbon and hydrogen present in the products burn to boric oxide, carbon dioxide and water vapor. was dissolved in diethyl ether. There was no increase in pressure. while at room temperature were obtained. Lower alkyl decaboranes such as monomethyldecarborane, dimethyldecarboraue, monoethyldecaborane, diethyldecaborane, monopropyldecaborane and the like, can be prepared, for example, according to the method described in application Ser. Acetylene was bubbled through the refluxing solution for 5 hours, at the end of which period mass spectral analysis showed none of the desired product. 4.7 g., a 62 percent yield, of product was obtained which was found by mass spectrometric analysis to contain 92.0 weight percent of CH; B H OHOC=CHz 1.0 weight percent of B H 6.2 Weight percent of H 0, and 0.7 weight percent of S0 Portion B was put directly into concentrated H SO with stirring for two hours, and then filtered. After washing W1 water and drylng over magnesium sulfate, the ether was :3 13 i8 5 distilled and the resdue was extracted with n-pentane, 4 4 about 300 ml. Thus, when used as the fuel supplied to the combustor of an aircraft gas turblne engine, the liquid products of the present invention are employed in essentially the same manner as the simple hydrocarbon fuel presently being used. autoclave with p.s.i. At the end of the 3.5 hour reaction period a mass spectrometric determination of the reaction mixture indicated the presence of 3.0 mole percent of unreacted ethyldecaborane and 0.34 mole percent of the reaction product, C H B H (CHCH), a 13 percent yield. (1.5 moles) of xylene in a three-necked flask equipped with a reflux condenser, gas delivery tube, and magnetic stirrer, was added 6.0 g. (0.04 mole) of monoethyldecaborane and 0.7 g. (0.01 mole) of isobutyronitrile. flask and distilled. Commercial grade acetylene, purified by a sulfuric acid-caustic train, was passed through the sintered glass sparger at about 10 cc. flask and the ether was distilled off. with methylacetylene (0.030 mole), stirring was begun, and the mixture was heated at C. for five hours. 76, 51 60 (1954) using 400 grams potassium hydroxide, 500 ml. The ingredients can be thoroughly mixed with a simultaneous removal of solvent, and following this the solvent free mixture can be molded into the desired shape as by extrusion. At the end of eight hours, the reaction mixture was cooled, transferred to a 50 ml. of di-n-butyl sulfide was also employed. (0.044 mole), and the mixture was heated overnight without stirring. ), water cooled condenser, sintered glass sparger tube, and an oil heating bath. After the mixture had cooled to room temperature, trirnethylamine was bubbled through to precipitate any unreacted decaborane. to 2.5 mm. of isopropenylacetylene were allowed to react in an autoclave at a temperature of 95 C. for 16 hours. Duplicate chemical analyses of the product obtained from the distillation at 5 mm. Each of those types is a device in which air is compressed and fuel is then burned in a combustor in admixture with the air. Samples from each flask were submitted for mass spectometric analysis, which showed flask 1 cent, 7.1 mole percent, and 6.8 mole percent of ture from all three flasks was mixed toget oxane was distilled off at reduced pressure'. 25. 52 A rate study of the reaction discloses a first-order … 200 ml. a 45 percent yield based on original borane. The process of the invention is illustrated in detail by the following examples. 3 .8 1 1 3 b 18.5 d 40 5% 2. Trimethylamine was bubbled through portion A, resulting in the formation of a sticky solid material which adhered to glass. Hg absolute. This product can be separated from the reaction mixture by distilling off the reaction solvents, removing the unreacted monoethyldecaborane with trimethylamine from a pentane solution of the residual reaction mixture, and distilling the pentane solution under reduced pressure, as shown in Example 1. A method for the production of an organoboron compound useful as a fuel which comprises reacting with the formation of hydrogen a borane selected from the group consisting of decaborane and alkyl dccaborancs having from one to two alkyl groups containing from one to five carbon atoms in each alkyl radical and an acetylcnic hydrocarbon containing from two to ten carbon atoms while the reactants are in admixture with a material selected from the group consisting of hydrogen cyanide, nitriles of saturated and unsaturated aliphatic monoand dicarboxylic acids containing 2 to 5 carbon atoms, B,[3'-oxydipropi0nitrile, lower tmonoalkyl amines, lower dialkyl amines, alkylene diamines containing 2 to 8 carbon atoms, lower dialkyl sufides and diphenyl sulfide. 16. (0.38 mole) of diethyl ether were placed in a 250 ml. 28. Example 5 A mixture of 5 g. (0.041 mole) of decaborane in 40 ml. (0.54 mole) of dimethyl sulfide were placed in a 250 m1. The method of claim 1 wherein said borane is decaborane, wherein said acetylenic hydrocarbon is acetylene and wherein said material is tetrahydrofuran. flask, and the ether was removed by distillation. pear-shaped flask, and distilled under vacuum, using a Claisen type distilling head with a cold-finger condenser and liquid fractionating take-01f. of diethyl ether, and 6.5 g. of isopropenylacetylene were allowed to react at a temperature of 95 C. for 16 hours, obtaining a maximum pressure of 325 p.s.i.g. The product was 6.2 g. of clear liquid, distilling at 6075 C. at a pressure of 0.4 mm. 2 1. 70 C./0.3 mm.-110 C./2.5 mm. The ether solution after reaction product ratio of 3. Trimethylamine was bubbled through the mixture to remove the decaborane, and the complex thus formed was filtered out into a weighed funnel. Decaborane was also developed as an additive to special high-performance rocket fuels. 12. Compounds depictable by the formula (R")I1B10H10(CRCR') wherein R and R' are each selected from the group consisting of hydrogen, alkyl radicals and monoalkenyl hydrocarbon radicals, the total number of carbon atoms in R and R being from 0 to 8; R" is a lower alkyl radical; and n is an integer between 0 and 2, inclusive. The reaction mixture was divided into two equal portions. The ramjet is also subject to marginal operating conditions which are similar to those encountered by the afterburner.

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