Pb(OAc)4(CH3)3SiN3 reacts with simple nucleophilic olefins to form mostly diazides and azide-acetoxy compounds,2 while with steroidal olefines α-azidosteroidketones3 are afforded. Contrary to this result the title reagent reacts not only with nucleophilic but also with electrophilic double-bounds yielding α-azido-carbonyl compounds. Not any azide-acetoxy compound is formed. Compound 14 indicates that
A versatile synthesis of vicinal diazides using hypervalent iodine
作者:Robert M. Moriarty、Jaffar S. Khosrowshahi
DOI:10.1016/s0040-4039(00)84648-1
日期:1986.1
A convenient synthesis of vicinal diazides from olefins using C6H5IO/HOAc/NaN3 is described. A mechanism is proposed which accounts for the stereochemical outcome.
描述了使用C 6 H 5 IO / HOAc / NaN 3从烯烃方便地合成邻位二叠氮化物。提出了解释立体化学结果的机制。
Copper-Catalyzed Oxidative Difunctionalization of Terminal Unactivated Alkenes
copper(II)-promoted free-radical oxidativedifunctionalization of terminalalkenes to access ketoazides by utilizing molecularoxygen has been reported. A series of styrene derivatives have been evaluated and were found to be compatible to give the desired difunctionalized products in moderate to good yields. The role of molecularoxygen both as an oxidant and oxygen atom source in this catalytic transformation