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supported by the National Basic Research Program of China(2013CB834505;2013CB834804);the National Natural Science Foundation of China(21390404;91427303;21402217);the Key Research Programme of the Chinese Academy of Sciences(KGZD-EW-T05)
With visible light(λ=450 nm) irradiation of a catalytic amount of platinum(Ⅱ) terpyridyl complex, 1,3,5-triaryl-2-pyrazolines can be smoothly converted to their corresponding pyrazoles and hydrogen in quantitative y...
1,3,5-Trisubstituted pyrazolines are rapidly and conveniently oxidized to their corresponding pyrazoles by 1,3-dichloro-5,5- dimethylhydantoin(DCH) in solution and solvent-free conditions under microwave irradiation...
Project No.20572040 was supported by National Natural Science Foundation of China.
1,3,5-Trisubstituted pyrazolines were oxidized to the corresponding pyrazoles in high yield with tris(4-bromophenyl)aminium (TBPA**) hexachloroantimonate in chloroform at room temperature.