参考文献
Tetrahedron, , vol. 23, p. 2243 - 2252
Justus Liebigs Annalen der Chemie, , vol. 139, p. 343
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), , vol. 31, # 10 p. 2106 - 2108
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, , # 10 p. 2390 - 2392