Germanium and tin analogues of alkynes and their reduction products.
作者： Lihung Pu , Andrew D. Phillips , Anne F. Richards , Matthias Stender , Richard S. Simons
DOI: 10.1021/JA035711M
关键词:
摘要: The reduction of terphenylgermanium(II) or terphenyltin(II) chlorides with alkali metals was investigated. Treatment Ar‘GeCl Ar*GeCl (Ar‘ = C6H3-2,6-Dipp2, Dipp C6H3-2,6-Pri2; Ar* C6H3-2,6-Trip2, Trip C6H2-2,4,6-Pri3) lithium, sodium, potassium afforded the neutral alkyne analogues Ar‘GeGeAr‘, 1, Ar*GeGeAr*, 2, singly reduced radical species NaAr*GeGeAr*, 3, KAr‘GeGeAr‘, 4, doubly compounds Li2Ar‘GeGeAr‘, 5, Na2Ar*GeGeAr*, 6, K2Ar*GeGeAr*, 7. Similarly, Ar‘SnCl Ar*SnCl Ar‘SnSnAr‘, 8, Ar*SnSnAr*, 9, anions [(THF)3Na{Ar*SnSnAr*}], 10, [K(THF)6][Ar‘SnSnAr‘], 11, [K(THF)6][Ar*SnSnAr*], 12, [K(18-crown-6)(THF)2] [Ar*SnSnAr*], 13, Na2Ar*SnSnAr*, 14, K2Ar‘SnSnAr‘, 15, K2Ar*SnSnAr*, 16. were characterized by UV−vis, 1H and 13C NMR EPR spectroscopy. X-ray crystal structures all determined except those 2 9. 1 8 displayed planar, trans...
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