Amido Ca and Yb(II) Complexes Coordinated by Amidine-Amidopyridinate Ligands for Catalytic Intermolecular Olefin Hydrophosphination
作者:Ivan V. Lapshin、Olga S. Yurova、Ivan V. Basalov、Vasily Yu. Rad’kov、Elvira I. Musina、Anton V. Cherkasov、Georgy K. Fukin、Andrei A. Karasik、Alexander A. Trifonov
DOI:10.1021/acs.inorgchem.8b00088
日期:2018.3.5
A series of amido Ca and Yb(II) complexes LM[N(SiMe3)2](THF) (1Yb, 1–4Ca) coordinated by amidine-amidopyridinate ligands L1–4 were synthesized via a transamination reaction between proligands L1–4H and bisamido complexes M[N(SiMe3)2]2(THF)2 (M = Yb, Ca). The reactions of Yb[N(SiMe3)2]2(THF)2 with proligands L2H-L4H containing CF3 and C6H4F fragments do not allow for preparing the target Yb(II) complexes
一系列酰氨钙和Yb的(II)配合物LM [N(森达3)2 ](THF)(1YB,1-4Ca)通过脒amidopyridinate协调配体大号1 - 4分别经由前配体之间的转氨基反应合成大号1 – 4 H和双酰胺基配合物M [N(SiMe 3)2 ] 2(THF)2(M = Yb,Ca)。Yb [N(SiMe 3)2 ] 2(THF)2与配体L 2 H - L的反应4 ħ含有CF 3和C 6 H ^ 4 ˚F片段不允许用于制备目标镱(II)配合物,而钙类似物被以良好的收率合成。络合物1YB和1 - 4CA评价为预催化剂用于苯乙烯的hydrophosphination, p -取代的苯乙烯,α-ME-苯乙烯,和2,3-二甲基与各种伯和仲膦(PhPH 2,2,4,6--ME 3 C 6 H 2 PH 2,2 -C 5 NH 4 PH 2,Ph 2 PH,Cy2 PH)。络合物1YB,1 - 4C