Synthesis and characterization of partially substituted NHC supported alane adducts using triflate or chloride salts
Autor: | Gašper Tavčar, Evelin Gruden |
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Rok vydání: | 2021 |
Předmět: |
chemistry.chemical_classification
010405 organic chemistry Chemistry Hydride Salt (chemistry) 010402 general chemistry 01 natural sciences Chloride Medicinal chemistry 0104 chemical sciences Adduct Inorganic Chemistry chemistry.chemical_compound Reagent Materials Chemistry medicine Physical and Theoretical Chemistry Chloride salt Trifluoromethanesulfonate Carbene medicine.drug |
Zdroj: | Polyhedron. 196:115009 |
ISSN: | 0277-5387 |
Popis: | Use of an aldiminium-based triflate salt as group transfer reagent to an N-heterocyclic carbene (NHC) adduct with alane [(IPr)AlH3] (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazole-2-ylidene) led to the substitution of a hydride by triflate and subsequently to the formation of [(IPr)AlH2OTf] (1), which is the first structurally characterized aluminum dihydride triflate compound and the first (trifluoromethanesulfonyl)oxyalane NHC adduct. The related reaction with aldiminium-based chloride salt resulted in similar substitution and formation of mixed products [(IPr)AlH2Cl] and [(IPr)AlHCl2], which co-crystallized in the form of [(IPr)AlH3−xClx], x = 1, 2 (2). This proves that aldiminium-based salts are suitable reagents in alane chemistry. In addition, the adduct [(IPr)AlCl3] (4) was also prepared from AlCl3 and IPr carbene. |
Databáze: | OpenAIRE |
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