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Abstract The dehydration reactions from primary amides to nitriles were catalyzed by the [CNC]-pincer hydrido cobalt(III) complexes [(ortho -F 4 C 6 CH N C 10 H 6)Co(III)(H)(PMe 3) 2 ] (1), [(2,5-F 2 C 6 H 2 CH N C 10 H 6)Co(III)(H)(PMe 3) 2 ] (2) and [(2,4,5-F 3 C 6 H CH N C 10 H 6)Co(III)(H)(PMe 3) 2 ] (3) as catalysts with (EtO) 3 SiH as an efficient reducing agent. These hydrido cobalt(III) complexes as catalysts are suitable for many substrates and have good functional group tolerance. Among the three cobalt hydrides, complex 2 is the best catalyst. This is the first hydrido cobalt complex-catalyzed dehydration of primary amides to nitriles. Graphical abstract Unlabelled Image Highlights • CNC-pincer cobalt hydride could catalyze dehydration of amides to nitriles. • The catalytic system has tolerance to many functional groups. • This is the first cobalt hydride-catalyzed dehydration of amides to nitriles. [ABSTRACT FROM AUTHOR]

A catalytic system of regioselective synthesis of allyl sulfides via hydrothiolation of terminal arylallenes with arylthiols has been developed using nickel(0) complex Ni (PMe3)4 as a catalyst. In most cases the excellent to moderate yields were obtained under mild conditions. A catalytic mechanism was suggested and partially‐experimentally verified. To the best of our knowledge, this is the first example of regioselective addition of thiophenols to terminal arylallenes catalyzed by nickel(0) complex. It was noteworthy that this catalytic system was only applicable to thiophenol compounds with terminal arylallenes. [ABSTRACT FROM AUTHOR]

A catalytic system of regioselective synthesis of allyl sulfides via hydrothiolation of terminal arylallenes with arylthiols has been developed using nickel(0) complex Ni (PMe3)4 as a catalyst. In most cases the excellent to moderate yields were obtained under mild conditions. A catalytic mechanism was suggested and partially‐experimentally verified. To the best of our knowledge, this is the first example of regioselective addition of thiophenols to terminal arylallenes catalyzed by nickel(0) complex. It was noteworthy that this catalytic system was only applicable to thiophenol compounds with terminal arylallenes. [ABSTRACT FROM AUTHOR]