- A New Conjugated Addition of Trialkyl Phosphites and Alkylidenephosphoranes to 3-omega-Azideoacetyl Coumarin Synthesis of Some 1,2,3,4-Triazaphospholes, Triazoles, and Azido-Coumarin Derivatives
[作者:SEDIEK ASHRAF A; SHADDY ABEER A; ABDOU WAFAA M,期刊:Journal of Heterocyclic Chemistry, 页码:1258-1263 , 文章类型: Article,,卷期:2011年48-6]
- A new and efficient conjugate addition of trimethyl and triethyl phosphites to 3-omega-azidoacetylcoumarin (1) has been studied. The reaction proceeded smoothly at r. t. furnishing 1,2,3,4-triazaphosphole coumarin deriva...
- An Improved Procedure for the Three-Component Synthesis of Benzo[g]chromene Derivatives Using Basic Ionic Liquid
[作者:YU YI; GUO HONGYUN; LI XIAOJUN,期刊:Journal of Heterocyclic Chemistry, 页码:1264-1268 , 文章类型: Article,,卷期:2011年48-6]
- A basic ionic liquid, 1-butyl-3-methyl imidazolium hydroxide ([bmim]OH), efficiently promotes a one-pot, three-component condensation of aromatic aldehydes, malononitrile or ethyl cyanoacetate, and 2-hydroxy-1,4-naphthoq...
- Bismuth Triflate-L(-)-Proline Catalyzed Synthesis of Chiral 2,5-Diaryl-2,3-dihydropyrano[2,3-b]quinolin-4-ones
[作者:MAHAJAN NITU; KOUL SURRINDER; RAZDAN TEJ K,期刊:Journal of Heterocyclic Chemistry, 页码:1302-1307 , 文章类型: Article,,卷期:2011年48-6]
- The synthesis of chiral (2R) 2,5-diaryl-2,3-dihydropyrano[2,3-b]quinolin-4-ones, was achieved, at ambient temperature, by the reaction of 3-acetyl-4-aryl-carbostyril and an aldehyde, in the presence of bismuth triflate-L...
- Synthesis and Conversion of 6-Fluoro Derivatives of 1,3,4-Thiadiazolo-[3,2-a]pyrimidine
[作者:KUKANIEV MUHAMADSHO A; PARKANYI CYRIL,期刊:Journal of Heterocyclic Chemistry, 页码:1308-1311 , 文章类型: Article,,卷期:2011年48-6]
- 2-Alkyl-, 2-aryl-, and 2-halo-substituted derivatives of 7-methyl-6-fluoro-1,3,4-thiadiazolo[3,2-a]pyrimidin-6-one (3) were prepared by reaction of 2-substituted 5-amino-1,3,4-thiadiazoles (1) and ethyl 2-fluoroacetoacet...
|