Formation of Phosphino-Substituted Isocyanate by Reaction of CO<sub>2</sub> with Group 2 Complexes Based on the (Me<sub>3</sub>Si)(<i>i</i>-Pr<sub>2</sub>P)NH Ligand
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The group 2 complexes [(Me3Si)(i-Pr2P)N]2M(THF)x (M = Mg, x = 1; M = Ca/Sr, x = 2) as well as an unusual dimagnesium complex {[(Me3Si)(i-Pr2P)N]3Mg}Mg(n-C4H9) have been prepared and characterized by multinuclear NMR spectroscopy and single crystal X-ray diffraction. Each complex was shown to react with CO2 under extremely mild conditions (15 min, 1 atm, room temperature) to give the isocyanate (i-Pr)2P–NCO. The independent syntheses of (i-Pr)2P–NCO and the carbodiimide dimer [(i-Pr)2PNCNP(i-Pr)2]2 are also reported.
创建时间：
2016-02-22
