1. N.D. Zelinsky Institute of Organic Chemistry RAS; Leninsky prosp. 47 Moscow 119991 Russia
2. Chemistry Department; M.V. Lomonosov Moscow State University; Leninskie gory 1, bdg 3 Moscow 119991 Russia
3. A.N. Nesmeyanov Institute of Organoelement Compounds RAS; Vavilova str. 28 Moscow 119991 Russia