HETEROATOM CONTAINING CYCLIC DIMERS
First Claim
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1. A process for preparing a compound comprising Formula (IX), the process comprising (a) contacting a compound comprising Formula (VI) with a compound comprising Formula (VII) or a compound comprising Formula (VIII) and an acid catalyst and (b) dehydrating the resulting reaction mixture to form the compound comprising Formula (IX), the compounds comprising Formula (IX), (VI), (VII), and (VIII):
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Abstract
The present invention provides cyclic dimers of alpha acids and polymers derived therefrom. Also provided are processes for preparing and methods of using the cyclic dimers and the polymers derived from the cyclic dimers.
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Citations
32 Claims
- 1. A process for preparing a compound comprising Formula (IX), the process comprising (a) contacting a compound comprising Formula (VI) with a compound comprising Formula (VII) or a compound comprising Formula (VIII) and an acid catalyst and (b) dehydrating the resulting reaction mixture to form the compound comprising Formula (IX), the compounds comprising Formula (IX), (VI), (VII), and (VIII):
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5. A process for preparing a compound comprising Formula (IX), the process comprising (a) heating a compound comprising Formula (VI) with a compound comprising Formula (VII) or a compound comprising Formula (VIII) to form a polymer and (b) heating the polymer at a temperature of about 200°
- C. and a pressure of less than about 1 Torr to form the compound comprising Formula (IX), the compounds comprising Formula (IX), (VI), (VII), and (VIII);
- View Dependent Claims (6, 7, 8)
- C. and a pressure of less than about 1 Torr to form the compound comprising Formula (IX), the compounds comprising Formula (IX), (VI), (VII), and (VIII);
- 9. A polymer comprising a repeat unit comprising Formula (XX):
- 24. A polymer comprising Formula (XXI)
- 27. A process for forming a polymer, the process comprising contacting a plurality of compounds comprising Formula (II):
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