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• 作者：Said D. Waezsada ; Feng-Quan Liu ; Eamonn F. Murphy ; Herbert W. Roesky ; Markus Teichert ; Isabel Usó ; n ; H.-G. Schmidt ; Thomas Albers ; Emilio Parisini ; and Mathias Noltemeyer
• 刊名：Organometallics
• 出版年：1997
• 出版时间：March 18, 1997
• 年：1997
• 卷：16
• 期：6
• 页码：1260 - 1264
• 全文大小：143K
• 年卷期：v.16,no.6(March 18, 1997)
• ISSN：1520-6041

文摘

AminodimethylalanesR¹R²NAlMe₂ (R¹ =2,6-i-Pr₂C₆H₃,2,6-Me₂C₆H₃; R² =SiMe₃, Si(i-Pr)Me₂, Si(t-Bu)Me₂,Si(2,4,6-Me₃C₆H₂)Me₂)are prepared in high yield via reaction of therespective amine R¹R²NH withtrimethylaluminum in n-hexane. Further reaction of(2,6-i-Pr₂C₆H₃)N(SiMe₃)AlMe₂with 2 equiv of trimethyltin fluoride in toluene affordstheaminoalane difluoride(2,6-i-Pr₂C₆H₃)N(SiMe₃)AlF₂.An X-ray structural determination of(2,6-i-Pr₂C₆H₃)N(SiMe₃)AlMe₂shows it to be dimeric with bridging methyl and terminalamino groups. The aminoalane difluoride(2,6-i-Pr₂C₆H₃)N(SiMe₃)AlF₂is trimeric with asix-membered alternating aluminum-fluorine ring. Terminalfluorine atoms are locatedabove and below the ring. Reactions of aminoalanesR¹R²NAlMe₂ with 2 equiv oftrimethyltinfluoride in THF yield the monomeric THF adductsR¹R²NAlF₂·THF.