作者:Allan Bashall、Philip E. Collier、Lutz H. Gade、Mary McPartlin、Philip Mountford、Stephen M. Pugh、Sanja Radojevic、Martin Schubart、Ian J. Scowen、Dominique J. M. Trösch
DOI:10.1021/om0005710
日期:2000.11.1
imidoylketeneimene fragment to the metal center. The reaction of 1with alkyl isocyanides bearing H atoms α to the NC group leads to a sequential coupling of 3 molar equiv of the isocyanide with the imido complex, yielding metal-bonded diaminodihydropyrimidine derivatives (R = H, 4a; CH3, 4b; C3H7, 4c; Ph, 4d) and (R,R‘ = C5H10, 5a; CH3,CH3, 5b; Ph,CH3, 5c). An X-ray diffraction study of 4a unambiguously established
所述imidotitanium复杂的反应[(κ 3 -N 2 NPY)的Ti(Ñ吨卜)(吡啶)](1)[N 2 NPY细胞=(2-C 5 H ^ 4 N)C(Me)的(CH 2 NSiMe 3)2 ]与导致胩到imidotitanium键的重复插入和纯化,产生四元titanacycle 2,6- xylylisocyanide [(κ 3 -N 2 NPY)的Ti N(TBU)C(N-二2,6- Me 2 C 6 H 3)C(N-2,6-C 6 H 3 Me 2)}](2),其通过X射线晶体学表征。2与大量的异氰酸酯R-NC [R = Et,n Bu,i Pr,Cy,t Bu,PhCH 2,p- Tol,(R)-CH(CH 3)Ph ],得到iminoketene配合物[(κ 3 -N 2 NPY)的Ti N(吨卜)C [N(2,6--ME 2 ç 6 ħ 3)] C(ç NR)N(2