01282nas a2200169   4500008004100000245015700041210006900198260000800267300001400275490000900289520060200298100002400900700001900924700002400943700001900967856012600986       2018                        eng d00aHarnessing nucleophilicity of allenol ester with p-quinone methides via gold catalysis: application to the synthesis of diarylmethine-substituted enones0 aHarnessing nucleophilicity of allenol ester with pquinone methid  cAUG  a9353-93630 v83  3 aA gold(I)-catalyzed protocol for intermolecular 1,6-conjugate addition of nucleophilic allenol ester generated in situ through [3,3]-sigmatropic rearrangement with p-quinone methides (p-QMs) has been developed. The gold catalyst plays a dual role by the pi-acid-triggered activation of alkynes and at the same time as a Lewis acid for activation of p-QMs toward nucleophilic attack. This method enables rapid access to a wide range of densely functionalized diarylmethine-substituted enones, a Morita-Baylis-Hillman (MBH) product with high selectivity, excellent yields, and broad substrate scope.1 aSharma, Brijesh, M.1 aRathod, Jayant1 aGonnade, Rajesh, G.1 aKumar, Pradeep  uhttps://library.ncl.res.in/content/harnessing-nucleophilicity-allenol-ester-p-quinone-methides-gold-catalysis-application