Practical BF3.Et20 catalyzed reactions between indoles and a series of carbonyl compounds at room temperature are described, which afford bis（indolyl）methanes with isolated yields up to 96%,
Vilsmeier reagent formed from phthaloyl dichloride and DMF was found to be very effective for converting 2-hydroxyacetophenones, deoxybenzoins and dihydrochalcones into corresponding chromones, isoflavones and homoiso...Vilsmeier reagent formed from phthaloyl dichloride and DMF was found to be very effective for converting 2-hydroxyacetophenones, deoxybenzoins and dihydrochalcones into corresponding chromones, isoflavones and homoisoflavones with excellent yield. This method offers significant advantages such as efficiency and mild reaction conditions with shorter reaction time.展开更多
基金fundings from the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry, Partenariats Hubert Curien Xu Guangqi 2012 (No. 27967RE)Fundamental Research Funds for the Central Universities (Nos. CDJRC10220004 and CDJZR11220005)Natural Science Foundation Project of CQ CSTC (Nos. 2010BB5064 and cstc2013jcyjA0217) for financial support
文摘Practical BF3.Et20 catalyzed reactions between indoles and a series of carbonyl compounds at room temperature are described, which afford bis（indolyl）methanes with isolated yields up to 96%,
文摘Vilsmeier reagent formed from phthaloyl dichloride and DMF was found to be very effective for converting 2-hydroxyacetophenones, deoxybenzoins and dihydrochalcones into corresponding chromones, isoflavones and homoisoflavones with excellent yield. This method offers significant advantages such as efficiency and mild reaction conditions with shorter reaction time.
