The one-step direct synthesis of N-perfluoro-tert-butyl secondary amines utilizes TMSCF3 as the sole CF3 source and the starting material N-CF3 secondary amine itself as the hydrogen source. PFtB amines can be effectively employed in 19F MRI.
Cu-based catalysts have garnered significant attention in ethynylation of formaldehyde for the synthesis of 1,4-butynediol.
The intensity of long-range electromagnetic effects is influenced by the Au core particle size, resulting in an influence on the stability of Cu+ under reducing atmospheres and the catalytic performance.
1,4-Butynediol is mainly synthesized through the ethynylation reaction of formaldehyde catalyzed by Cu-based catalysts.
CuO/SiO2 catalysts with copper-phyllosilicate structures contribute to the formation of active and stable Cu2C2 complexes due to the strong interaction between CuO and SiO2 and thus exhibit high ethynylation activity and stability for 1,4-butynediol.