Intermolecular Addition Reaction to Alkenes of Acylmolybdenum Complexes Generated by Oxidative Addition of Aryl or Alkenyl Halides with Molybdenum(0) Carbonyl Complexes
Acylmolybdenum species, generated by oxidativeaddition of aryl or alkenyl halides with molybdenum(0) carbonylcomplex followed by carbon monoxide insertion, added to various kinds of alkenes intermolecularly to give simple addition products in good yields without formation of carbonylative Heck-type products.
Silyl trifluoromethanesulfonate-activated para-methoxybenzyl methyl ether as an alkylating agent for thiols and aryl ketones
作者:C. Wade Downey、Sarah E. Covington、Derek C. Obenschain、Evan Halliday、James T. Rague、Danielle N. Confair
DOI:10.1016/j.tetlet.2014.07.068
日期:2014.9
para-Methoxybenzyl methyl ether acts as an alkylatingagent for thiols in the presence of trimethylsilyl trifluoromethanesulfonate and trialkylamine base in good yields (58–96%). Aryl ketones are alkylated under similar conditions, probably through an enol silane intermediate, also in high yields (67–95%). The activealkylating species is likely a p-methoxybenzyl cation.