48 Result(s)

Article

Synthesis and crystal structure of 3,10-dimethyl-10H-dibenzo[b,e]iodinium tetrafluoroborate

The crystal and molecular structures of a chiral cyclic iodonium salt, namely, 3,10-dimethyl-10H-dibenzo[b,e]iodinium tetrafluoroborate, is solved by the direct method (a = 20.678(5) Å, b = 20.738(5) Å, c = 8.408...

N. E. Zhukhlistova, G. N. Tishchenko, T. P. Tolstaya… in Crystallography Reports (2001)

Article

Synthesis of cyclic iodonium salts containing an asymmetric carbon atom

We report the synthesis of two iodonium salts with an asymmetric carbon atom in the cation, viz. 3-methyl-10H,10-(4-tolyl)dibenz[b,e]iodinium tetrafluoroborate and the salt of the same cation with the anion of...

T. P. Tolstaya, A. N. Vanchikov, E. V. Vinnik… in Chemistry of Heterocyclic Compounds (1999)

Article

Nucleophilic substitution in the 10,11-dihydrodibenz[b,f]iodepinium cation

10,11-Dihydrodibenz[b,f]iodepinium tetrafluoroborate gave only 1-(2-azidophenyl)-2-(2-iodophenylethane with the N₃ ⁻ in aqueous DMSO, while with NO₂ ⁻ it gave 1-(2-nitrophenyl)-2-(2-iodophenyl)ethane (93%), 9,10-...

T. P. Tolstaya, L. I. Sukhomlinova, A. N. Vanchikov… in Chemistry of Heterocyclic Compounds (1999)

Article

Nucleophilic substitution in dibenz[b,d]iodolium and 11,12-dihydro-10H-dibenz[b,g]iodocinium cations

Treatment of dibenz[b,d]iodolium tetrafluoroborate with NO₂ ⁻, Br⁻, and N₃ ⁻ ions gave, along with nucleophilic substitution products, 2-nitro-, 2-bromo-, and 2-azido-2′-iodiphenyls, diphenyl, 2-iododiphenyl, and...

A. N. Vanchikov, M. S. Bobyleva, E. E. Komissarova… in Chemistry of Heterocyclic Compounds (1998)

Article

Nucleophilic substitution inO-phenyldibenzofuranium and 10-phenylxanthonium cations

Reactions ofO-phenyldibenzofuranium tetrafluoroborate with nucleophiles (OH⁻, NO₂ ⁻, AcO⁻) in aqueous media follow the S_NAr-mechanism and involve dehydroarenes. In DMSO, this salt smoothly reacts ...

T. P. Tolstaya, M. S. Bobyleva, A. N. Vanchikov… in Russian Chemical Bulletin (1997)

Article

Palladium-catalyzed condensation of symmetrical diaryliodonium salts with phenylacetylene in aqueous media

L. I. Sukhomlinova, E. V. Luzikova, T. P. Tolstaya… in Russian Chemical Bulletin (1995)

Article

Palladium catalyzed cross coupling of diaryliodonium salts with copper acetylide

E. V. Luzikova, L. I. Sukhomlinova, T. P. Tolstaya… in Russian Chemical Bulletin (1995)

Article

Palladium-catalyzed cross-coupling of diaryliodonium salts with organotin compounds

N. A. Bumagin, L. I. Sukhomlinova… in Bulletin of the Russian Academy of Science… (1992)

Article

Palladium-catalyzed arylation of acrylic acid by diaryliodonium salts in water

N. A. Bumagin, L. I. Sukhomlinova… in Bulletin of the Russian Academy of Science… (1992)

Article

Palladium-catalyzed cross-coupling of aryldiazonium salts with tetramethyltin in aqueous medium

N. A. Bumagin, L. I. Sukhomlinova… in Bulletin of the Academy of Sciences of the… (1990)

Article

Alkaline hydrolysis of phenyl(9-m-carboranyl)bromonium borofluoride: Formation of bis(9-m-carboranyl) ether

Two routes compete in the alkaline hydrolysis of phenyl-9-m-carboranylbromonium borofluoride: nucleophilic substitution with cleavage in the main Br-B bond, giving bis(9-m-carboranyl) ether as the main product...

I. I. Demkina, V. V. Grushin, T. P. Tolstaya… in Bulletin of the Academy of Sciences of the… (1989)

Article

Phenylation of fluorine-containing C-, O- and N-anions by diphenylhalonium tetrafluoroborides

The phenylation of fluorinated C-, O-, and N-anions by diphenylhalonium tetrafluoroborides was reported.

L. S. German, N. I. Delyagina… in Bulletin of the Academy of Sciences of the… (1989)

Article

Crystal and molecular structure of bis-9-m-carboranylbromonium borofluoride

A. I. Yanovskii, Yu. T. Struchkov, V. V. Grushin… in Journal of Structural Chemistry (1988)

Article

Synthesis of 4,2′-iodonio-3-phenyl-1,2-benzisoxazole tetrafluoroboride and the crystal structure of its monohydrate

4,2′-Iodonio-3-phenyl-l,2-benzisoxazole tetrafluoroboride monohydrate (IV) was synthesized and an x-ray diffraction structural study showed that the cation (IV) is a tetracyclic system and the crystal structur...

A. S. Batsanov, V. N. Petrov… in Bulletin of the Academy of Sciences of the… (1985)

Article

Reactions of bromonium salts of the carboborane series with nucleophiles

1. The reaction of phenyl-(9-m-carboranyl)bromonium borofluoride with nucleophiles is less regioselective than t...

V. V. Grushin, I. I. Demkina, T. P. Tolstaya in Bulletin of the Academy of Sciences of the… (1985)

Article

Synthesis of 10H-dibenzo[b,e]chlorinium fluoroborate and deuterium exchange reactions in the CH₂ unit of 10H-dibenzo[b,e]halinium cations

1. 10H-Dibenzo[b,e]chlorinium fluoroborate has been synthesized. Deuterium exchange reactions showed that the CH...

L. D. Egorova, I. N. Lisichkina… in Bulletin of the Academy of Sciences of the… (1985)

Article

¹²⁷I NQR spectra in iodonium compounds

1. For a series of iodonium compounds of the Ar₂IX type, it has been found that the¹²⁷I NQR parameters — the qua...

G. K. Semin, S. I. Gushchin, S. A. Petukhov… in Bulletin of the Academy of Sciences of the… (1985)

Article

Molecular and crystal structure of 10-oxodibenz[b,e]iodinium and 10H-dibenz[b,e]iodinium tetrafluoroborides

1. An x-ray diffraction structural analysis was carried out on 10-oxodibenz[b,e]iodinium (I) and 10H-dibenz[b,e]...

Z. G. Aliev, L. O. Atovmyan, L. D. Egorova… in Bulletin of the Academy of Sciences of the… (1985)

Article

Oxidative cyclization of halobenzophenone oximes to 4,2′-iodonia-3-phenyl-1,2-benzisoxazole salts

It is shown that the syn oximes of o-iodo- and o-, m-, and p-bromobenzophenones, under the influence of K₂S₂O₈ in concentrated H₂SO₄, form the corresponding 3-aryl-1,2-benzisoxazoles as a result of oxidative cycl...

T. P. Tolstaya, L. D. Egorova, I. N. Lisichkina in Chemistry of Heterocyclic Compounds (1985)

Article

Aryl-(9-m-carboranyl)halonium salts

1. 3-Fluorophenyl-, 4-fluorophenyl-, and phenyl-(9-m-carboranyl)chloronium tetrafluoroborides were prepared. The...

I. I. Demkina, A. N. Vanchikov… in Bulletin of the Academy of Sciences of the… (1985)