New trialkylsilyl enol ether chemistry: direct 1,2-bis-azidonation of triisopropylsilyl enol ethers: an azido-radical addition process promoted by TEMPO
作者:Philip Magnus、Michael B. Roe、Christopher Hulme
DOI:10.1039/c39950000263
日期:——
Treatment of triisopropylsilyl enol ethers with PhIO/TMSN3/TEMPO (cat.)–45 °C results in 1,2-bis-azidonation, which appears to occur through a radical addition process; the 1-azido group can be replaced by carbon nucleophiles such as allyl, methyl, cyano, acetylene and acetonyl.
用PhIO / TMSN 3 / TEMPO(cat。)– 45°C处理三异丙基甲硅烷基烯醇醚会导致1,2-双叠氮基化,这似乎是通过自由基加成过程发生的。1-叠氮基可被碳亲核试剂如烯丙基,甲基,氰基,乙炔和乙炔基取代。