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ChemInform Abstract: Gould-Jacobs Reaction of 5- and 6-Amino-2-substituted-benzoxazoles. Part 3. Reaction with 3-Ethoxy-2-cyanopropeno-nitrile and Ethyl 3- Ethoxy-2-cyanopropenoate.

✍ Scribed by K. HELEYOVA; D. ILAVSKY

Publisher: John Wiley and Sons
Year: 2010
Weight: 33 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199722163

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✦ Synopsis

Gould-Jacobs Reaction of 5-and 6-Amino-2-substituted-benzoxazoles. Part 3. Reaction with 3-Ethoxy-2-cyanopropeno-nitrile and Ethyl 3-Ethoxy-2-cyanopropenoate.

-Reaction of 5-and 6-aminobenzoxazoles (I) or (VI), resp., with the title 3-ethoxyacrylic acid derivatives (II) provides the nucleophilic substitution products (III) or (VII), resp., in good to high yield. Thermal cyclization of the products derived from 3-ethoxy-2-cyanopropenoate provides a mixture of angularly and linearly anellated oxazoloquinoline deriva-

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