Solution-Phase Combinatorial Synthesis of 4-Hydroxyquinolin-2(1H)ones. -Ion-exchange resin catalyzes an intramolecular Claisen-type condensation leading to the title compounds (II) and (IV), and also serves to purify the products. -(KULKARNI, B.
Solid-phase combinatorial synthesis of 4-hydroxyquinolin-2(1H)-ones
β Scribed by Mui Mui Sim; Cheng Leng Lee; A. Ganesan
- Book ID
- 104259715
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- French
- Weight
- 192 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Cyanoacetic acid was loaded on Wang resin and C-acylated using acid anhydrides and triethylamine as base. Resin cleavage with concomitant decarboxylation produces 13-keto nitriles. In the case of isatoic anhydrides, the resin-bound acylated intermediates undergo cyclative cleavage upon heating, leading to 4hydroxyquinolin-2(1H)-ones.
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