E-viri
Recenzirano
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Gao, Pin; Li, Hong-Xia; Hao, Xin-Hua; Jin, Dong-Po; Chen, Dao-Qian; Yan, Xiao-Biao; Wu, Xin-Xing; Song, Xian-Rong; Liu, Xue-Yuan; Liang, Yong-Min
Organic letters, 12/2014, Letnik: 16, Številka: 24Journal Article
A novel iron-catalyzed aerobic oxidative reaction to synthesize disubstituted isoxazoles from homopropargylic alcohol, t-BuONO, and H2O is developed. The method provides mild conditions to afford a variety of useful substituted heterocycles in an efficient and regioselective manner. The mechanism has been studied and proposed, which indicates that the transformation can be realized through construction of a CN bond and CO bond, C–H oxidation, and then cyclization. Moreover, this method can be enlarged to gram scale.
