Dibenzo crown monomers and polymers formed therefrom

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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C07D32300

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active

053027299

ABSTRACT:
Novel bis(extraannular functionally-substituted phenylene) crown compounds, useful as chelating agents or in the synthesis of condensation polymers containing large semi-rigid macrocycles in the polymer backbone, are described. A broad range of functional groups (preferably in the 5-position) can be used in the 1,3-phenylene varieties. Carboxy functional groups are used in certain novel 1,2-phenylene crowns.

REFERENCES:
patent: 4876367 (1989-10-01), Urban
patent: 4942149 (1990-07-01), Shinbo et al.

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