α-Acetoxyarone synthesis via iodine-catalyzed and <i>tert</i>-butyl hydroperoxide-mediateded self-intermolecular oxidative coupling of aryl ketones
作者:Liquan Tan、Cui Chen、Weibing Liu
DOI:10.3762/bjoc.13.107
日期:——
We present a metal-free method for α-acetoxyarone synthesis by self-intermolecular oxidative coupling of aryl ketones using I2-tert-butyl hydroperoxide (TBHP). Under the optimum conditions, various aryl ketones gave the corresponding products in moderate to excellent yields. A series of control experiments were performed; the results suggest the involvement of radical pathways. Multiple radical intermediates
General base-tuned unorthodox synthesis of amides and ketoesters with water
作者:Saikat Khamarui、Rituparna Maiti、Dilip K. Maiti
DOI:10.1039/c4cc07961b
日期:——
We discovered a highly reactive λ3-hypervalent iodane species using an inorganic/organic base for the unorthodox synthesis of amides and ketoesters through grafting terminal alkynes. In contrast to the metal-catalyzed dehydrative approaches the in situ generated nonmetallic reagent efficiently created C–N/C–O and CO bonds with amines/alkynes and water at rt.