Cascade Formation of Isoxazoles: Facile Base-Mediated Rearrangement of Substituted Oxetanes
作者:Johannes A. Burkhard、Boris H. Tchitchanov、Erick M. Carreira
DOI:10.1002/anie.201100260
日期:2011.5.27
Give me five! Nitro compounds and oxetan‐3‐one react through an intriguing cascade sequence to give isoxazole‐4‐carbaldehydes using inexpensive reagents in a one‐pot procedure (see scheme; Ms=methanesulfonyl). A variety of 3‐substituted isoxazole‐4‐carbaldehydes were obtained in high overall yields.
击个掌!硝基化合物和oxetan-3-one通过一个有趣的级联序列反应,使用便宜的试剂在单锅法中制得异恶唑4-甲醛(见方案; Ms =甲磺酰基)。以高总收率获得了各种3-取代的异恶唑-4-甲醛。