Controlling regiochemistry in the gold-catalyzed synthesis of unsaturated spiroketals
A novel gold-catalyzed synthesis of unsaturated spiroketals that addresses regioselectivity issues commonly reported in metal-catalyzed spiroketalization of alkynes is reported. The reaction sequence is regulated by an acetonide protecting group which und
Paioti, Paulo H. S.,Ketcham, John M.,Aponick, Aaron
supporting information
p. 5320 - 5323
(2015/01/16)
Au-catalyzed cyclization of monopropargylic triols: An expedient synthesis of monounsaturated spiroketals
The gold-catalyzed cyclization of monopropargylic triols to form olefin-containing spiroketals is reported. The reactions are rapid and high yielding when 2 mol % of the catalyst generated in situ from Au[P(t-Bu) 2(o-biphenyl)]CI and AgOTf is e
Aponick, Aaron,Li, Chuan-Ying,Palmes, Jean A.
supporting information; experimental part
p. 121 - 124
(2009/07/11)
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