[α??(Dimethylamino) benzyllithium–Diethyl Ether] 2,(S)?螃窿?(Methylpivaloylamino) benzyllithium–(–)??Sparteine, and [3??Iodo??2??lithio??1??methylindole–2 Tetrahydrofuran] …

G Boche, M Marsch, J Harbach, K Harms…

Index: Boche, Gernot; Marsch, Michael; Harbach, Juergen; Harms, Klaus; Ledig, Burkhard; et al. Chemische Berichte, 1993 , vol. 126, # 8 p. 1887 - 1894

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Citation Number: 77

Abstract

Abstract In order to determine whether α-metalated (lithiated) amines are carbenoids, as are α-lithiated halides and ethers, we have determined the crystal structures of the title compounds. In [α-(dimethylamino) benzyllithium–diethyl ether] 2 ([9· OEt 2] 2) lithium bridges the anionic carbon and the nitrogen atom which corresponds to the most stable calculated model structure of LiCH 2 NH 2. The C–N bond is only slightly (≈ 3 pm) elongated ( ...