title: Synthesis and the structure of 8-tetrahydrofuronium and 8-tetrahydropyronium derivatives of iron bis(dicarbollide)(-I) and their cleavage reactions.
abstract: 8-Tetrahydrofuronium and 8-tetrahydropyronium derivatives of iron bis(dicarbollide)(-I) were synthesized. Their reactions of ring cleavage by MeOH, N3(-), amines and 1,2-bis(diphenylphosphino)ethane were investigated. 8-Tetrahydrofuronium iron bis(dicarbollide)(-I) was found to be more active in these reactions in comparison with 8-tetrahydropyronium and 8-dioxonium species, respectively. The first conjugates of iron bis(1,2-dicarbollide)(-I) with 2'-deoxyadenosine modified via the C-8 position of the purine base were synthesized. Reactions of these oxonium compounds with 1,2-bis(diphenylphosphino)ethane (dppe) led to zwitter-ionic monophosphonium salts. One of these compounds has given rise to a novel ferracarborane/cobaltacarborane hybrid complex.
authors.affiliation: A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Str. 28, 119991, Moscow, Russia. semi@ineos.ac.ru.
authors.forename: Irina
authors.initials: I
authors.lastname: Lobanova
authors.forename: Irina
authors.initials: I
authors.lastname: Kosenko
authors.forename: Julia
authors.initials: J
authors.lastname: Laskova
authors.forename: Ivan
authors.initials: I
authors.lastname: Ananyev
authors.forename: Anna
authors.initials: A
authors.lastname: Druzina
authors.forename: Ivan
authors.initials: I
authors.lastname: Godovikov
authors.forename: Vladimir I
authors.initials: VI
authors.lastname: Bregadze
authors.forename: Shicheng
authors.initials: S
authors.lastname: Qi
authors.forename: Zbigniew J
authors.initials: ZJ
authors.lastname: Leśnikowski
authors.forename: Andrey
authors.initials: A
authors.lastname: Semioshkin
mesh_terms: D003035:Cobalt / Q000737:chemistry; D056831:Coordination Complexes / Q000737:chemistry*; D003839:Deoxyadenosines / Q000737:chemistry; D007501:Iron / Q000737:chemistry*; D015394:Molecular Structure; D011166:Porphyrins / Q000737:chemistry; D014961:X-Ray Diffraction; D000098851:Carboranes
chemical_list: D003035:Cobalt; D056831:Coordination Complexes; D003839:Deoxyadenosines; D007501:Iron; D011166:Porphyrins; C515487:cobaltacarborane; D000098851:Carboranes; C058118:2'-deoxyadenosine