| 摘要 |
The method for producing diarylmethane and its derivatives by condensation of an aromatic hydrocarbon and a methylenating agent is proposed, in which the aromatic hydrocarbon having at least one hydrogen atom that is directly connected to its benzene ring and a methylenating agent such as formalin are reacted in a specific temperature range in the presence of a heteropoly-acid of the condensation product of at least one oxide selected from the group of Mo, W, Nb and V with an oxyacid of P, Si, As or Ge.
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