An efficient catalytic method for the Friedländer annulation mediated by peptide coupling agent propylphosphonic anhydride (T3P®)
摘要:
We have demonstrated the utilization of T3P, a mild and low toxic peptide coupling agent, as a promoter and water scavenger in the Friedlander annulation, and thus introduced a highly efficient catalytic process to access carbocyclic and heterocyclic fused quinolines under microwave irradiation or a conventional heating technique. The reaction conditions are sufficiently mild to tolerate the acid and base sensitive functional groups that can serve as levers for further extension of the quinoline products. (C) 2011 Elsevier Ltd. All rights reserved.
Furo-, Pyrano- und Oxepino-chinoline sowie deren Schwefel-Analoga
作者:G. Kempter、P. Zänker、H.-D. Zürner
DOI:10.1002/ardp.19673001005
日期:——
Aus aromatischen o‐Amino‐ketonen und heterocyclischen Ringketonen, die in 3‐ bzw. 4‐Stellung zur Carbonylgruppe Sauerstoff bzw. Schwefel enthalten, werden heterocyclisch b‐kondensierte Chinoline hergestellt.
由芳香族邻氨基酮和杂环酮(其 3 位或 4 位含有氧和硫)到羰基,生成杂环 b-稠合喹啉。
An efficient catalytic method for the Friedländer annulation mediated by peptide coupling agent propylphosphonic anhydride (T3P®)
We have demonstrated the utilization of T3P, a mild and low toxic peptide coupling agent, as a promoter and water scavenger in the Friedlander annulation, and thus introduced a highly efficient catalytic process to access carbocyclic and heterocyclic fused quinolines under microwave irradiation or a conventional heating technique. The reaction conditions are sufficiently mild to tolerate the acid and base sensitive functional groups that can serve as levers for further extension of the quinoline products. (C) 2011 Elsevier Ltd. All rights reserved.