Synthetic manner null of torihueniren

摘要

PURPOSE:To provide a method for efficiently synthesizing a triphenylene ring useful as a mother nucleus for discotic liquid crystal. CONSTITUTION:(1) The characteristic of this method for synthesizing a 2,3,6,7,10,11-hexaalkoxy-substituted triphenylene is that concentrated sulfuric acid is added to a mixture of at least a 1,2-dialkoxybenzene and an aqueous solution of ferric chloride. Or (2) a 1,2-dialkoxybenzene is reacted in the presence of at least concentrated sulfuric acid and ferric sulfate to provide a method for synthesizing a 2,3,6,7,10,11-hexaalkoxy-substituted triphenylene.