One-Pot Synthesis of 1,10-Dihydro-2H-imidazo[3,4-a]quinazolin-1-ones from 3-Acyl-1,2-dihydrocinnoline-1,2-dicarboximides
摘要:
3-Substituted 1,10-dihydro-2H-imidazo[3,4-a] quinazolin-1-ones were prepared from 3-acyl-1,2-dihydrocinnoline-1,2-dicarboximides and piperidine in DMSO in moderate yields via Michael additions, skeletal rearrangements, and subsequent decarboxylation.
Base-Induced Addition-Elimination Reactions of Electron-Deficient Vinylarenes Containing a Carbonyl or Ester Group Utilizing 4-Phenyl-3<i>H</i>-1,2,4-triazole-3,5(4<i>H</i>)-dione(PTAD)
作者:Kazuyoshi Seguchi、Satoko Tanaka
DOI:10.1246/bcsj.64.3188
日期:1991.10
The reaction of electron-deficient vinylarenes such as styrylketones and cinnamate with PTAD afforded double Diels–Alder products and Diels–Alder ene products; the latter underwent novel base-induced elimination of 4-phenyl-1,2,4-triazolidine-3,5-dione via a stable carbanion.
Kazuyoshi, Seguchi; Tanaka, Satoko, Journal of the Chemical Society. Perkin transactions I, 1991, # 11, p. 2883 - 2884
作者:Kazuyoshi, Seguchi、Tanaka, Satoko
DOI:——
日期:——
One-pot syntheses of 3-cyanoindoles from 3-acyl- and 3-ethoxycarbonyl-1,2-dihydrocinnoline-1,2-dicarboximides
作者:Satoko Tanaka、Kazuyoshi Seguchi、Akira Sera
DOI:10.1039/p19950000519
日期:——
2-Acyl- and 2-ethoxycarbonyl-3 cyanoindoles were prepared from 3-acyl- and 3-ethoxycarbonyl-1,2-dihydrocinnoline-1,2-dicarboximides and potassium cyanide via Michael addition, skeletal rearrangement and subsequent elimination of isocyanate.
SEGUCHI, KAZUYOSHI;TANAKA, SATOKO, J. CHEM. SOC. CHEM. COMMUN.,(1991) N, C. 89-90