Actinide-mediated catalytic addition of E-H bonds (E=N, P, S) to carbodiimides, isocyanates, and isothiocyanates.
Angewandte Chemie(2015)
摘要
Unprecedented catalytic reactivity of actinide coordination complexes toward heterocumulenes, such as carbodiimides, isocyanates, and isothiocyanates is reported. The mono(imidazolin-2-iminato) thorium(IV) complex [Th(Im(Dipp) N){N(SiMe3 )2 }3 ] (1) was applied as a precatalyst for the addition of EH (E=N, P, S) bonds to the YCX core (Y=R2 N; X=NR2 , O, S) of carbodiimides, isocyanates, and isothiocyanates. The respective insertion products were obtained in high yields under mild reaction conditions, with complex 1 displaying high tolerance toward functional groups and heteroatoms.
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关键词
actinide catalysis,carbodiimides,nucleophilic insertion,isocyanates,thioisocyanates
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