Some reactions of persistent benzofuranone radicals related to the ‘old’ diazonamide structure
摘要:
The benzofuranone dimers 9 and 10/11 readily (ca. 75 degreesC) dissociate to the persistent radicals 16 and 17 respectively, which are stable to, dioxygen. The OMe analog 25 dissociates to form the radical 24, which reacts with dioxygen of TEMPO to give 26. (C) 2004 Published by Elsevier Ltd.
Synthesis of benzofuranones related to diazonamide via an intramolecular Pummerer reaction
摘要:
Treatment of in situ generated 2-thiolaethyl-2-chloro-2-phenylacetyl aryl esters with SnCl4 (catalytic) resulted in the formation of the corresponding 3-thiomethylbenzofuran-2-ones. (C) 1998 Elsevier Science Ltd. All rights reserved.