Photocyclization reactions. Part 8. Synthesis of 2??quinolone, quinoline and coumarin derivatives using trans??cis isomerization by photoreaction
…, N Hosokawa, K Tanemura, T Suzuki
Index: Horaguchi, Takaaki; Hosokawa, Nobuyuki; Tanemura, Kiyoshi; Suzuki, Tsuneo Journal of Heterocyclic Chemistry, 2002 , vol. 39, # 1 p. 61 - 67
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Citation Number: 19
Abstract
Abstract 2-Quinolone 2, quinoline 3, coumarin (2H-1-benzopyran-2-one) 5, and 2H-1- benzopyran hemiacetal 6 were synthesized by photocyclization reaction of traans-o- aminocinnamoyl derivatives trans-1 and trans-o-hydroxycinnamoyl derivatives trans-4. The reaction proceeds through trans-cis isomerization followed by intramolecular cyclization.
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