Synthesis and X-ray Structures of the Polycyclic Dimers {[PhB(μ-NtBu)2AsN(tBu)H]LiI}2 and [PhB(μ-NtBu)2AsN(tBu)Li]2
作者:Jari Konu、Tristram Chivers
DOI:10.1002/zaac.200700543
日期:2008.5
of [PhB(μ-NtBu)2]AsCl and tBuN(H)Li in 1:1 molar ratio in diethyl ether produced the amido derivative [PhB(μ-NtBu)2AsN(tBu)H] (1) in good yield. The lithiation of 1 with one equivalent of nBuLi afforded the lithium salt [PhB(μ-NtBu)2AsN(tBu)Li] (2a). Both 1 and 2a were characterized by multinuclear NMR spectroscopy. The crystal structure of 2a is comprised of a U-shaped, centrosymmetric dimer in which