Synthesis and Characterization of Rigid Ditopic N-Heterocyclic Benzobisgermylenes and -stannylenes
| Autor: | F. Ekkehardt Hahn, Julia V. Dickschat, Sergei Krupski, Alexander Hepp, Tania Pape |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Organometallics. 31:2078-2084 |
| ISSN: | 1520-6041 0276-7333 |
| DOI: | 10.1021/om3000604 |
| Popis: | A rigid ditopic benzobisgermylene, 4a, was prepared by the reaction of the 1,2,4,5-tetra(alkylamine)benzene 3a and Ge[N(SiMe3)2]2. The analogous reaction of two 1,2,4,5-tetra(alkylamine)benzenes, 3b,c, with Sn[N(SiMe3)2]2 led to the oxidation of the tetramine ligand and formation of N-alkyl-2-(alkylamine)-N′-alkyl-5-(alkylamine)-1,4-benzoquinonediimines (5b,c) and tin(0). The p-benzoquinonediimines 5b,c subsequently react with remaining Sn[N(SiMe3)2]2 to yield distannylene complexes of type [N-alkyl-2-(alkylamino)-N′-alkyl-5-(alkylamino)-1,4-benzoquinonediimine]di[bis(trimethylsilyl)aminotin(II)] (6b,c). The 2,5-di(alkylamine)-1,4-benzoquinonediimines 5b,c can also be obtained directly by aerial oxidation of the 1,2,4,5-tetrakis(alkylamine)benzenes 3b,c. They react with two equivalents of Sn[N(SiMe3)2]2 also under transmetalation and formation of [N-alkyl-2-(alkylamino)-N′-alkyl-5-(alkylamino)-1,4-benzoquinonediimine]di[bis(trimethylsilyl)aminotin(II)] (6b,c). The molecular structures of 3b, 4a, 6b, and 6... |
| Databáze: | OpenAIRE |
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