Carbocyclization versus oxycyclization on the metal-catalyzed reactions of oxyallenyl C3-linked índoles
…, P Almendros, JM Alonso, I Fernandez
Index: Alcaide, Benito; Almendros, Pedro; Alonso, Jose M.; Fernandez, Israel Chemical Communications, 2012 , vol. 48, # 52 p. 6604 - 6606
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Citation Number: 27
Abstract
The preparation of previously unknown (indol-3-yl)-α-allenols and-allenones was accomplished from indole-3-carbaldehydes, through indium-mediated Barbier allenylation reaction taking advantage of the N-(2-pyridyl) sulfonyl group. Metal-catalyzed cyclizations of oxyallenyl C3-linked indoles proceeded in two ways depending on the presence or absence of the N-(2-pyridyl) sulfonyl group. For allenols, gold-catalyzed oxycyclization occurred in ...
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