Application of allenylsilanes in [3+2] annulation approaches to oxygen and nitrogen heterocycles
Rick L. Danheiser, Carrie A. Kwasigroch, Yeun Min Tsai
J. Am. Chem. Soc.; 1985; 107(24); 7233-7235.
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http://dx.doi.org/10.1021/ja00310a109Спасибо!