Isocyanates from Oxalyl Chloride and Amines.

Abstract

The process of this invention for preparing isocyanates is a one-step process comprising heating an amine or an amine hydrochloride salt with excess oxalyl chloride (OxCl) in a high boiling point solvent from about 80 C-180 C for a reaction time of about 0.5-2 hours. An appropriate high boiling point solvent is selected from o-dichlorobenzene (DCB) and decahydronaphthalene (Decalin). After forming the isocyanate, the excess oxalyl chloride and solvent are removed and the isocyanate is separated and purified by distillation.

Document Details

Document Type
Technical Report
Publication Date
Aug 25, 1986
Accession Number
ADD012580

Entities

People

  • Chester W. Marynowski
  • Maria A. Geigel

Organizations

  • United States Army

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boiling
  • Boiling Point
  • Chemical Compounds
  • Chlorides
  • Distillation
  • Inventions
  • Isocyanates
  • Isothermal Processes
  • Phase Transformations
  • Reaction Time
  • Thermodynamic Processes

Fields of Study

  • Chemistry

Readers

  • Organic Chemistry