Amino-functionalised diarylphosphide complexes of the alkali metals and lanthanum
作者:Keith Izod、Stephen T. Liddle、William Clegg、Ross W. Harrington
DOI:10.1039/b601938b
日期:——
}M.1/2OEt2 [Ar = mes, M = Na (8), K (9); Ar = Tripp, M = K (10)]. Metathesis reactions between 9 and LaI3(THF)4 give only intractable products; in contrast, a metathesis reaction between 10 and LaI3(THF)4 yields the heteroleptic complex (Tripp)(C6H4-2-CH2NMe2)P}2LaI (11). Compound 11 reacts cleanly with KN(SiMe3)2} to give (Tripp)(C6H4-2-CH2NMe2)P}2LaN(SiMe3)2} (14). Compounds 3-5, 8-11 and 14
可以从Li(C6H4-2-CH2NMe2)和相应的二氯膦之间的反应中以高收率分离仲膦Ar(C6H4-2-CH2NMe2)PH [Ar = mes(3),Tripp(4)] LiAlH4 [mes = 2,4,6-Me3C6H2,Tripp = 2,4,6-Pri3C6H2]。用BunLi对3或4进行金属化,得到相应的锂化合物;分离出3的锂衍生物作为分离的离子对络合物[Li(12-crown-4)2] [(mes)(C6H4-2-CH2NMe2)P] .THF(5)。锂络合物Ar(C6H4-2-CH2NMe2)PLi与NaOBut或KOBut进行复分解反应,得到较重的碱金属磷化物Ar(C6H4-2-CH2NMe2)P} M.1 / 2OEt2 [Ar = mes,M = Na(8),K(9);Ar = Tripp,M = K(10)]。9与LaI3(THF)4之间的复分解反应仅产生难处理的