Alcohol Participates in the Synthesis of Functionalized Coumarin-Fused Pyrazolo[3,4-b]Pyridine from a One-Pot Three-Component Reaction
作者:Wei Lin、Cangwei Zhuang、Xiuxiu Hu、Juanjuan Zhang、Juxian Wang
DOI:10.3390/molecules24152835
日期:——
A concise and efficient approach to synthesizing coumarin-fusedpyrazolo[3,4-b]pyridine via silica sulfuric acid (SSA) catalyzed three-component domino reaction under microwave irradiation has been demonstrated. Participation of various alcohols in construction of coumarin derivatives has been described for the first time. Short reaction time, high yields, one-pot procedure, usage of eco-friendly catalyst
Microwave-assisted synthesis of novel hetero[5]helicene-like molecules and coumarin derivatives
作者:Wei Lin、Xiuxiu Hu、Shuai Song、Qi Cai、Yun Wang、Daqing Shi
DOI:10.1039/c7ob01742a
日期:——
A concise and efficient approach to design and synthesize hetero[5]helicene-like molecules and coumarin derivatives was reported. Intriguingly, use the same catalyst (silica sulfuric acid), different solvent and reaction temperature, the reaction selectively afforded hetero[5]helicene-like molecules 3 or coumarin derivatives 4. The product 4 has a highly planar geometry, and the product 3 can be regarded