72758-69-1Relevant articles and documents
Green method for high-selectivity synthesis of chalcone compounds
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Paragraph 0071-0074, (2021/10/02)
Under the condition of air, the water-soluble inorganic weak base is used as a catalyst to catalyze the hydrogen transfer reaction of the propargyl alcohol compound, so that the green synthesis of the high-trans selective chalcone compound is realized. Reaction temperature: 80 - 120 °C and reaction time 12 - 48 hours. To the technical scheme, any transition metal catalyst and ligand do not need to be used, inert gas protection is not needed, no other byproducts are generated, the atom economy 100%, green and environment friendliness are avoided, and the product is a high-selectivity (E)-type product. The reaction conditions are relatively low in requirement. Compared with the prior art, the alkali catalyst is obvious in advantages, and has a certain application prospect in the fields of organic synthesis, biochemistry, medicine and the like.
Iron-Catalyzed ?±,?-Dehydrogenation of Carbonyl Compounds
Zhang, Xiao-Wei,Jiang, Guo-Qing,Lei, Shu-Hui,Shan, Xiang-Huan,Qu, Jian-Ping,Kang, Yan-Biao
supporting information, p. 1611 - 1615 (2021/03/03)
An iron-catalyzed α,β-dehydrogenation of carbonyl compounds was developed. A broad spectrum of carbonyls or analogues, such as aldehyde, ketone, lactone, lactam, amine, and alcohol, could be converted to their α,β-unsaturated counterparts in a simple one-step reaction with high yields.
Pyridoimidazole derivatives as well as preparation method and application thereof
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Paragraph 0093; 0097-0099, (2021/06/22)
The invention discloses pyridoimidazole derivatives as well as a preparation method and application thereof. The pyridoimidazole derivatives with two D-pi-A structures are synthesized on the basis that pyridoimidazole serves as an electron acceptor system by means of the electron donating property of phenanthroimidazole/diphenylamine. The pyridoimidazole derivatives can serve as photoinitiators, and the two photoinitiators both have longer conjugated chain lengths, so that the photon absorption cross section is increased, the photoinitiators can initiate polymerization reaction at the wavelength of 365 nm, have higher polymerization efficiency, and can be widely applied to the field of ultraviolet curing.