Detailed Information on Publication Record
2005
Adduct formation and dealkylsilylation reactions of alumazene
PINKAS, Jiri and Jiri LOBLBasic information
Original name
Adduct formation and dealkylsilylation reactions of alumazene
Name in Czech
Tvorba aduktu a dealkylsilylační reakce alumazenu
Authors
PINKAS, Jiri (203 Czech Republic, guarantor) and Jiri LOBL (203 Czech Republic)
Edition
1. vyd. Honolulu, USA, Pacifichem 2005 - INOR 166, p. 166-166, 1 pp. 2005
Publisher
ACS
Other information
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10402 Inorganic and nuclear chemistry
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
RIV identification code
RIV/00216224:14310/05:00013018
Organization unit
Faculty of Science
Keywords in English
iminoalane; alumazene; dealkylsilylation
Tags
Změněno: 31/5/2009 22:21, prof. RNDr. Jiří Pinkas, Ph.D.
V originále
Trimeric iminoalane alumazene, [2,6-(i-Pr)2C6H3NAlMe]3, possesses a central six-membered Al3N3 planar ring. Its high reactivity is caused by a polarity of the Al-N bonds and a small delocalization of the ŕ electrons in the ring. We will present the results of our studies on the reactivity of alumazene with a variety of oxygen and nitrogen bases and trimethylsilyl esters of acids of phosphorus and sulfur with the aim of obtaining new polycyclic and polyhedral molecules. Trimethylester of phosphoric acid in the reaction with alumazene at room temperature forms a cis-adducts A and on heating affords intractable mixtures of products. On the other hand, mono- and bisadduct of triphenylphosphine oxide were structurally characterized and a trans isomer B was revealed by X-ray diffraction analysis. Dealkylsilylation reactions of trimethylsilyl esters of phosphonic acids (RP(O)(OSiMe3)2, R = Me, Ph, CCl3) lead to bicyclic products C or D, depending on the size of R. Phosphoric acid ester, OP(OSiMe3)3, provided a heteroadamantane compound E. Analogous dealkylsilylation reaction was observed with trimethylsilyl esters of sulfonic acids and provided bicyclic moieties similar to C that assemble into a hexameric supramolecular ring in the solid state. The reactions of pyridines and nitriles (RCN, R = Me3Si, i-Pr, 4-MeOC6H4, 4-MeC6H4, 2,6-F2C6H3) with alumazene were studied in analogy to their reactions with AlMe3. Mono-, bis- and tris-adducts were observed spectroscopically and also were structurally characterized. The cis- and trans isomers were observed for the bis-adducts of 2,6-X2C6H3CN (X = F, Cl) and MeC6H4CN, respectively.
In Czech
Tvorba aduktu a dealkylsilylační reakce alumazenu
Links
| GA203/04/0296, research and development project |
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| MSM0021622410, plan (intention) |
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