Efficient Synthesis of Cyclopentenones from Enynyl Acetates via Tandem Au(I)-Catalyzed 3,3-Rearrangement and the Nazarov Reaction
作者:Liming Zhang、Shaozhong Wang
DOI:10.1021/ja057327q
日期:2006.2.1
A highly efficient method for the synthesis of versatilecyclopentenones from readily available enynyl acetates via tandem Au(I)-catalyzed 3,3-rearrangement and the Nazarov reaction is developed. Significant substrate flexibility and excellent control of the double bond position in the cyclopentenone ring render this an attractive method for cyclopentenonesynthesis.
Regioselective <i>trans</i>-Carboboration of Propargyl Alcohols
作者:Hongming Jin、Alois Fürstner
DOI:10.1021/acs.orglett.9b01225
日期:2019.5.3
Proper choice of the base allowed trans-diboration of propargylalcohols with B2(pin)2 to evolve into an exquisitely regioselective procedure for net trans-carboboration. The method is modular as to the newly introduced carbon substituent (aryl, methyl, allyl, benzyl, alkynyl), which is invariably placed distal to the −OH group.