The novel method of preparing an arylboron halide from the arylmercury halide, ArHgX+ BX,+ ArBX,+ HgX,(X= C1 or Br), has in general considerable advantages over the previous methods. Phenylmercury chloride and boron tribromide have afforded the first reported mixed halide, RBClBr. Interaction of phenylmercury nitrate and boron trichloride is described.
[Oh, Se-Woung; Weiss, Joseph W. E.; Kerneghan, Phillip A.; Korobkov, Ilia; Maly, Kenneth E.; Bryce, David L. Magnetic Resonance in Chemistry, 2012 , vol. 50, # 5 p. 388 - 401]