Issue 0, 1969

Synthesis by use of molecular carbon. Part I. Boron halides

Abstract

Carbon vapour generated from a carbon arc has been co-condensed with various boron halides. In this manner diboron tetrachloride afforded a mixture of C(BCl2)4, ClC(BCl2)3, and Cl2C(BCl2)2; and boron trichloride yielded the last two compounds as well as Cl(Cl2B)C:C(BCl2)Cl. Diboron tetrafluoride and carbon vapour reacted to give species derived from C1, C2 and C3 molecules, viz., (F2B)4C, (F2B)2C:C(BF2)2, and (F2B)2C:C:C(BF2)2. However, tetrakis(difluoroboryl)methane was only isolated in small amount and identified mass spectrometrically. The principal boron-containing compound obtained from the reaction between methylboron dichloride and carbon vapour was Me2C(BCl2)2. Acetylene was the main non-boron-containing product identified. Non-boron-containing products, (ethylene, acetylene, and diacetylene) predominated when trimethylboron was used, but tetramethyldiborane was also formed. The nature of the reactions is discussed.

Article information

Article type
Paper

J. Chem. Soc. A, 1969, 1882-1888

Synthesis by use of molecular carbon. Part I. Boron halides

J. E. Dobson, P. M. Tucker, F. G. A. Stone and R. Schaeffer, J. Chem. Soc. A, 1969, 1882 DOI: 10.1039/J19690001882

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