METHOD FOR SYNTHESIS OF BENZOCYCLOBUTENE BY PYROLISIS OF QUATERNARY AMMONIUM SALTS OF 2-METHYLBENZYL-(TRIALKYL) AMMONIUM CHLORIDES

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to a method for producing benzocyclobutene. Composite compounds of quaternary ammonium salts of 2-methylbenzyl-(trialkyl) ammonium chlorides and hydroquinone or merhylhydroquinone as polymerization inhibitors were used as raw materials in aqueous solutions. The said composite compounds were subjected to pyrolysis to produce the result at a pressure of 2-30 mm Hg and temperature of 350-450°C under argon and with metal oxides present (CuO and Fe₂O₃). , where R=Me, Et, Py.;EFFECT: desired high conversion product can be achieved with a minimum yield of corrosive by-products detrimental to metal surfaces of vacuum equipment.;4 ex