Oxidation with dilute aqueous ferric chloride solutions greatly improves yields in the ‘4+1’ synthesis of sapphyrins
作者:Daniel T. Richter、Timothy D. Lash
DOI:10.1016/s0040-4039(99)01352-0
日期:1999.9
The use of dilute aqueous FeCl3 as an oxidant, instead of DDQ, greatly improves the yields of sapphyrin products by the '4+1' methodology; yields for carbasapphyrins were somewhat lower but also greatly benefited from this approach. (C) 1999 Elsevier Science Ltd. All rights reserved.