Striley, Cynthia A. F.; Amer, Adel; Zhang, Wei Yuan; Zimmer, Hans; Lando, Jerome B.
Phosphorus, Sulfur and Silicon and Related Elements, 1996 , vol. 115, p. 141 - 148
1: With trifluoroacetic acid in chloroform
T=20°C; 24 h; Inert atmosphere;
2: With 2,3-dicyano-5,6-dichloro-p-benzoquinone in chloroform
T=20°C; 5 h; Inert atmosphere; Further stages;
