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 Technology Profile

Title:

One Step and Acid-free Catalytic Process for Making Diphenylmethane (DPM)
Value Proposition:
  • Simple & one-pot reaction
  • Substantially less by-product formation
  • Acid & solvent-free process
  • No toxic chemicals used like AlCl3
  • Simple separation protocol
  • Selectivity: 95 %
Summary Application:
  • Pharma: Synthesis of drugs (Azelastine, Diphenhydramine)
  • Agro: Pesticides and insecticides
  • Dyes: As a solvent & plasticizer
  • Fragrance industry: Fixative & as a fragrance in soaps
  • Synthesis of luminogens for aggregation- induced emission
  • DPM potassium: Polymerization initiator
Advantages:
  • Simple & one-pot reaction
  • Substantially less by-product formation
  • Acid & solvent-free process
  • No toxic chemicals used like AlCl3
  • Simple separation protocol
  • Selectivity: 95 %
Tech. Readiness Level:
CSIR-National Chemical Laboratory
CSIR-National Chemical Laboratory[CSIR-NCL]
:  director[at]ncl[dot]res[dot]in
:91-20- 25902600, 25902028
:http://www.ncl-india.org/
Industrial Applications: Agro-processing [Chemistry, Chemical Processes] Agrochemicals [Agriculture] Bulk Chemicals [Chemistry, Chemical Processes] Polymers [Materials] Synhtesis Procesess [Drugs and Pharmaceuticals]
Patent(s): IN363996