Condensation of colchicinoids and isocolchicinoids with amidines in dry benzene affords regioselectively 1,3-diazaazulene derivatives: ipso-substitution-condensation products (e,g. 7) are best obtained from cycloheptatrienone-ring deactivated substrates (e.g. 4), whereas isomeric tele-subsfitution-c
ChemInform Abstract: Synthesis of 1,3-Diazaazulene Derivatives of Colchicinoids and Isocolchicinoids via ipso- or tele-Substitution-Condensation with Amidines.
β Scribed by M. CAVAZZA; F. PIETRA
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 34 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0931-7597
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