Lee, Jong Gun; Ha, Dong Soo
Tetrahedron Letters, 1989 , vol. 30, # 2 p. 193 - 196

Spiteller, Michael; Spiteller, Gerhard; Hoyer, Georg-Alexander
Chemische Berichte, 1980 , vol. 113, # 2 p. 699 - 709

Kirrmann,A.; Nouri-Bimorghi,R.
Bulletin de la Societe Chimique de France, 1968 , p. 3213 - 3220

Zbiral,E.; Rasberger,M.
Tetrahedron, 1969 , vol. 25, p. 1871 - 1874

Spiteller, Michael; Spiteller, Gerhard; Hoyer, Georg-Alexander
Chemische Berichte, 1980 , vol. 113, # 2 p. 699 - 709

Zav'yalov, S. I.; Sitkareva, I. V.; Dorofeeva, O. V.; Rumyantseva, E. E.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1987 , vol. 36, # 8 p. 1750 - 1752
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1987 , # 8 p. 1887 - 1890