NOVEMBER, 1962 FUSED-RING BORAZINES 3849 jected because trichloroborane, though known to cleave aromatic ethers, 8 is not known to cleave nonvicinal ether groups of alko~ yanilines~ and because evolution of alkyl halide did not become apparent, in our experiments, before approximately half of the hydrogen halide indicated in Reaction (A) had been evolved.
