Inexpensive and Efficient Synthesis of Propargylic Substituted Active Methylene Compounds Catalyzed by FeCl<sub>3</sub>
作者:Sukhendu Maiti、Srijit Biswas、Umasish Jana
DOI:10.1080/00397910903534031
日期:2010.12.22
A highlyefficient and practical method for the synthesis of propargylic substituted 1,3-dicarbonyl compounds with direct use of propargylic alcohols in the presence of inexpensive and environmentally benign FeCl3 (5 mol%) has been presented. The reaction works with varieties of substrates at room temperature without an inert atmosphere with an excellent yield. The present method can also be employed
Propargylation of 1,3-Dicarbonyl Compounds with 1,3-Diarylpropynes via Oxidative Cross-Coupling between sp<sup>3</sup> C−H and sp<sup>3</sup> C−H
作者:Dongping Cheng、Weiliang Bao
DOI:10.1021/jo8010039
日期:2008.9.1
A highly efficient oxidative-coupling reaction between diarylpropargylic sp(3) C-H and active methylenic sp(3) C-H was achieved with DDQ as oxidant. The reaction afforded a direct method for the propargylation of 1,3-dicarbonyl compounds, thus providing a concise synthesis of the corresponding products.