Process for preparing halogen-terminated oligomers useful in the production of acetylene-terminated resins

Process for preparing halogen-terminated oligomers useful in the production of acetylene-terminated resins

A process for preparing halogen-terminated oligomers by an Ullmann condensation is disclosed wherein a diphenol and a dihalobenzene are reacted in the presence of cuprous oxide in 2,4,6-collidine. The oligomers are useful in producing acetylene-terminated resins by replacing the terminal halogen ato...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HEDBERG, FREDERICK L, UNROE, MARILYN R
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:A process for preparing halogen-terminated oligomers by an Ullmann condensation is disclosed wherein a diphenol and a dihalobenzene are reacted in the presence of cuprous oxide in 2,4,6-collidine. The oligomers are useful in producing acetylene-terminated resins by replacing the terminal halogen atoms with acetylene groups.