Arene C-H activation using Rh(I) catalysts supported by bidentate nitrogen chelates

作者：Webster Gardiner Michael S^*; Fu Ross; Fortman George C; Nielsen Robert J; Gunnoe T Brent; Goddard William A III

来源：Catalysis Science & Technology, 2015, 5(1): 96-100.

DOI：10.1039/c4cy00972j

The Rh(I) complexes [((Fl)DAB)Rh(coe)(TFA)] (1) and [(BOZO)Rh(coe)(TFA)] (2) [(Fl)DAB = N, N-bis-(pentafluorophenyl)-2,3-dimethyl-1,4-diaza-1,3-butadiene, coe = cyclooctene, TFA = trifluoroacetate, BOZO = bis(2-oxazolin-2-yl)] are efficient catalyst precursors for H/D exchange between arenes and DTFA. Catalyst precursor 1 exhibits a TOF of 0.06 s(-1) at 150 degrees C for benzene H/D exchange. DFT calculations revealed that H/D exchange through reversible oxidative addition or internal electrophilic substitution of benzene is a viable pathway.

• 出版日期2015