Synthesis and the structure of 8-tetrahydrofuronium and 8-tetrahydropyronium derivatives of iron bis(dicarbollide)(-I) and their cleavage reactions

2015 ◽  
Vol 44 (4) ◽  
pp. 1571-1584 ◽  
Author(s):  
Irina Lobanova ◽  
Irina Kosenko ◽  
Julia Laskova ◽  
Ivan Ananyev ◽  
Anna Druzina ◽  
...  
Keyword(s):  
Oxonium Derivatives ◽  
Cleavage Reactions ◽  
Derivatives Of

8-oxonium derivatives of iron bis(dicarbollide)(-I) were synthesized and their reactivity towards various nucleophiles was studied.

Cleavage of the Epimines of 1,6-Anhydrohexoses with Fluoride Anion

2005 ◽  
Vol 70 (12) ◽  
pp. 2075-2085 ◽  
Author(s):  
Jiří Kroutil ◽  
Klára Jeništová
Keyword(s):  
Fluoride Anion ◽  
Ring Cleavage ◽  
Protecting Group ◽  
Reaction Conditions ◽  
Aziridine Ring ◽  
Cleavage Reactions ◽  
Derivatives Of ◽  
Fluoro Derivatives

Aziridine ring cleavage reactions of five N-nosylepimines (2-6) having D-talo, D-galacto, D-manno, and D-allo configurations with potassium hydrogendifluoride under various reaction conditions have been performed. The cleavage regioselectively afforded diaxial isomers of vicinal amino-fluoro derivatives of 1,6-anhydro-β-D-gluco- and mannopyranose 7-11 in 51-94% yields. Removal of 2-nitrobenzenesulfonyl protecting group with benzenethiol has been attempted in the case of compound 10.

Cleavage Reactions of 5-Arylazo Derivatives of 1-Methyl-2-benzyl-2-imidazolin-4-ones

1975 ◽  
Vol 30 (7-8) ◽  
pp. 603-605 ◽  
Author(s):  
Nazmi Abdel Latif Kassab ◽  
Abdel Hamid Harhash ◽  
Sanna Osman Abd Allah
Keyword(s):  
Sodium Hydroxide Solution ◽  
Aqueous Sodium Hydroxide ◽  
The Other ◽  
Ring Cleavage ◽  
Prolonged Heating ◽  
Aqueous Sodium Hydroxide Solution ◽  
Aqueous Sodium ◽  
Triazine Derivatives ◽  
Cleavage Reactions ◽  
Derivatives Of

The 5-arylazo-1-methyl-2-benzyl-2-imidazolin-4-ones (1 a-c) undergo ring cleavage with 1% aqueous sodium hydroxide solution affording α-arylhydrazono-phenacetyl-sarcosine amide (2). Prolonged heating of 1 and 2 with the same reagent yields the cyanamide (3). On the other hand, when 1 a-c were refluxed with acetic acid the triazinones (4) were obtained. The latter adds one mole of Grignards reagent to yield the 5-hydroxy-1,2,4-triazine derivatives (5).

Cyclic oxonium derivatives of cobalt and iron bis(dicarbollide)s and their use in organic synthesis

2021 ◽  
Vol 90 ◽  
Author(s):  
Anna Aleksandrovna Druzina ◽  
Akim Vladimirovich Shmalko ◽  
Igor Borisovich Sivaev ◽  
Vladimir Iosifovich Bregadze
Keyword(s):  
Organic Synthesis ◽  
Oxonium Derivatives ◽  
Derivatives Of

Reactions of oxonium derivatives of [B12H12]2− with sulphur nucleophiles. Synthesis of novel B12-based mercaptanes, sulfides and nucleosides

2011 ◽  
Vol 696 (2) ◽  
pp. 539-543 ◽  
Author(s):  
Andrey Semioshkin ◽  
Julia Laskova ◽  
Anna Ilinova ◽  
Vladimir Bregadze ◽  
Zbigniew J. Lesnikowski
Keyword(s):  
Oxonium Derivatives ◽  
Derivatives Of

ChemInform Abstract: CLEAVAGE REACTIONS OF 5-ARYLAZO DERIVATIVES OF 1-METHYL-2-BENZYL-2-IMIDAZOLIN-4-ONES

1975 ◽  
Vol 6 (44) ◽  
pp. no-no
Author(s):  
NAZMI ABDEL LATIF KASSAB ◽  
ABDEL HAMID HARHASH ◽  
SANNA OSMAN ABD ALLAH
Keyword(s):  
Cleavage Reactions ◽  
Derivatives Of

Oxonium derivatives of closo-decaborate in reactions with sulfur-containing nucleophiles

2010 ◽  
Vol 59 (3) ◽  
pp. 556-559 ◽  
Author(s):  
E. Yu. Matveev ◽  
G. A. Razgonyaeva ◽  
V. N. Mustyatsa ◽  
N. A. Votinova ◽  
K. Yu. Zhizhin ◽  
...  
Keyword(s):  
Oxonium Derivatives ◽  
Derivatives Of ◽  
Sulfur Containing

Cyclic oxonium derivatives of polyhedral boron hydrides and their synthetic applications

2008 ◽  
pp. 977 ◽  
Author(s):  
Andrey A. Semioshkin ◽  
Igor B. Sivaev ◽  
Vladimir I. Bregadze
Keyword(s):  
Boron Hydrides ◽  
Oxonium Derivatives ◽  
Derivatives Of

Characterization of Monohalogen and Monopseudohalogen Derivatives of Dimethylgermane

1974 ◽  
Vol 52 (14) ◽  
pp. 2622-2633 ◽  
Author(s):  
Geoffrey K. Barker ◽  
John E. Drake ◽  
Raymond T. Hemmings
Keyword(s):  
Force Field ◽  
Vibrational Spectra ◽  
High Yield ◽  
Normal Coordinate ◽  
Physical Methods ◽  
Valence Force Field ◽  
Fundamental Frequencies ◽  
Cleavage Reactions ◽  
Derivatives Of

The high yield syntheses of Me2GeHX (X = F, Cl, Br, I) and Me2GeHPs (Ps = CN, N3, NCO, NCS, OAc) are reported. The dimethylgermane derivatives are identified and characterized by various physical methods and by cleavage reactions where appropriate. A normal coordinate analysis based on a modified valence force field provides confirmation of the assignments for all the fundamental frequencies, except the torsional modes, in the vibrational spectra of the monohalogeno(dimethyl)germanes, Me2GeHX.

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