名称:
Enantioselective synthesis of [1,2]-oxazinone scaffolds and [1,2]-oxazine core structures of FR900482
摘要:
Several chiral unsaturated [1,2]-oxazinone heterocycles have been synthesized by iridium-catalyzed allylic substitution and ring-closing metathesis (RCM) reaction in high yields with excellent enantiomeric excesses. In addition, the synthesis of [1,2]-oxazine core structures of FR900482 was achieved via iridiurn-catalyzed allylic substitution, followed by RCM and Heck reactions, respectively. (c) 2007 Elsevier Ltd. All rights reserved.