1. Department of Chemistry; Voronezh State University; Universitetskaya pl. 1 Voronezh 394006 Russia
2. Department of Chemistry, Faculty of Science; Sohag University; 82524 Sohag Egypt
3. A.N. Nesmeyanov Institute of Organoelemental Compounds; RAS; Vavilov St. Moscow 119991 Russia
4. N.D. Zelinsky Institute of Organic Chemistry; RAS; Leninsky prosp. 47 Moscow 119991 Russia