29230-99-7Relevant articles and documents
Copper porphyrin-catalyzed C(sp2)—O bond construction via coupling phenols with formamides
Yang, Shuang,Chen, Xiao-Yan,Xiong, Ming-Feng,Zhang, Hao,Shi, Lei,Lin, Dong-Zi,Liu, Hai-Yang
, p. 1541 - 1548 (2021/04/21)
Copper porphyrin-catalyzed construction of C(sp2)—O bond via coupling formamides with phenols was achieved firstly. A broad range of substrates afforded various carbamates in moderate to good yields with good functional group tolerance at low catalyst loading. Intermolecular competing kinetic isotope effect experiment indicated that the generation of formamide radical is the rate-determining step of current cross-dehydrogenative coupling (CDC) reaction. The research extends the application of metalloporphyrin in CDC reaction.
A nitrogen-doped porous carbon derived from copper phthalocyanines on/in ZIF-8 as an efficient photocatalyst for the degradation of dyes and the C[sbnd]H activation of formamides
Movahed, Siyavash Kazemi,Piraman, Zeinab,Dabiri, Minoo
, p. 208 - 224 (2017/10/31)
A novel nitrogen doped carbon photocatalyst was successfully prepared from the carbonization of copper phthalocyanine (CuPc) on/in zeolitic imidazolate framework-8 (ZIF-8) hybrid. Carbonized catalysts derived from either ZIF-8 or CuPc exhibit poor activity towards the degradation of dyes (such as methyl orange (MO) and Rhodamine B (Rh B)), whereas carbonized CuPc complex supported on ZIF-8 exhibits extremely high performance. The weight ratios 1:2 and 1:8 of CuPc/ZIF-8 showed the high dye absorption activity, while the weight ratio 1:4 demonstrated the high photocatalytic activity in the presence of H2O2 as an oxidant. For the first time, the photocatalyst (Cu/N-PC) was used in C[sbnd]H activation of formamides in the presence of tert-butyl hydroperoxide (TBHP) as an oxidant. The reaction proceeded within 30 min, in the presence 0.02 mol% of Cu.
Nickel-catalyzed oxidative esterification of formamides with 1,3-dicarbonyl compounds under mild reaction conditions
Saberi, Dariush,Poorsadeghi, Samira
, (2017/09/30)
Synthesis of enol carbamates was achieved via nickel-catalyzed oxidative coupling of formamides with 1,3-dicarbonyl compounds in the presence of tert-butyl hydroperoxide at 40?°C. Various derivatives of enol carbamates were synthesized by this method in good to excellent yields.