Direct Use of Allylic Alcohols for Platinum-Catalyzed Monoallylation of Amines

Masaru Utsunomiya, Yoshiki Miyamoto, Junji Ipposhi, Takashi Ohshima,* and Kazushi Mashima*;
Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
Org. Lett., 2007, 9 (17), pp 3371–3374
DOI: 10.1021/ol071365s
Publication Date (Web): July 21, 2007
Copyright © 2007 American Chemical Society

Abstract

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A new direct catalytic amination of allylic alcohols promoted by the combination of platinum and a large bite-angle ligand DPEphos was developed in which the allylic alcohol was effectively converted to a π-allylplatinum intermediate without the use of an activating reagent. The use of the DPEphos ligand was essential for obtaining high catalyst activity and high monoallylation selectivity of primary amines, allowing the formation of a variety of monoallylation products in good to excellent yield.

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History

  • Published In Issue August 16, 2007
  • Received June 8, 2007

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