Shi, Xiaodong Gorin, David J. Toste, F. Dean Synthesis of 2-Cyclopentenones by Gold(I)-Catalyzed Rautenstrauch Rearrangement The rearrangement of 1-ethynyl-2-propenyl pivaloates to cyclopentenones catalyzed by cationic triphenylphosphinegold(I) complexes is described. The reaction tolerates both alkyl and aryl substitution at the acetylenic and olefinic positions. Importantly, the gold(I)-catalyzed rearrangement of enantioenriched propargyl pivaloates proceeds with excellent chirality transfer, thus providing a practical method for the enantioselective synthesis of cyclopentenones. olefinic positions;alkyl;triphenylphosphinegold;enantioenriched propargyl pivaloates proceeds;cationic;Rautenstrauch;complex;aryl substitution;ethynyl;enantioselective synthesis;method;Synthesi;Cyclopentenone;Importantly;Rearrangement;chirality transfer;cyclopentenone;rearrangement;acetylenic 2005-04-27
    https://acs.figshare.com/articles/journal_contribution/Synthesis_of_2_Cyclopentenones_by_Gold_I_Catalyzed_Rautenstrauch_Rearrangement/3289411
10.1021/ja051689g.s002