102741-41-3Relevant academic research and scientific papers
Au(I) Catalyzed Synthesis of Densely Substituted Pyrazolines and Dihydropyridines via Sequential Aza-Enyne Metathesis/6π-Electrocyclization
Sugimoto, Kenji,Kosuge, Shuto,Sugita, Takae,Miura, Yuka,Tsuge, Kiyoshi,Matsuya, Yuji
supporting information, p. 3981 - 3985 (2021/05/26)
A gold(I) autotandem catalysis protocol is reported for the de novo synthesis of densely substituted pyrazolines and dihydropyridines from the corresponding imine derivatives in a highly regioselective fashion via a one-pot aza-enyne metathesis/6π-electrocyclization sequence. The substituents on the nitrogen atom of the imine perfectly control the reaction pathways from the pivotal 1-azabutadiene intermediate; thus, carbazates were converted into pyrazolines via 6π-electrocyclization of α,β-unsaturated hydrazones, while aryl imines provided dihydropyridines via 6π-electrocyclization of 3-azahexatrienes.
Phenylhydrazone fluorescent probe, preparation and applications thereof
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Paragraph 0049-0051, (2019/12/25)
The invention discloses a phenylhydrazone fluorescent probe, a preparation and applications thereof. According to the present invention, the fluorescence of the phenylhydrazone fluorescent probe can be enhanced in Al, Ba, Cu, Hg, Mg, Ag, Ni and Zn, can be even enhanced by more than 20 times in Mg and Ni, and is almost completely quenched in Fe, such thatthe results show that the complexed phenylhydrazone has good selectivity on iron metal ions, and can be used for the naked eye qualitative identification of iron ions.
I2 mediated synthesis of 5-substituted-3-methyl/benzyl-1,3,4-oxadiazol-2(3H)-ones via sequential condensation/oxidative cyclization and rearrangement
Patel, Shyam Sunder,Chandna, Nisha,Kumar, Shreemoyee,Jain, Nidhi
, p. 5683 - 5689 (2016/07/06)
A simple and efficient iodine-assisted protocol for the synthesis of 5-substituted-3-methyl/benzyl-1,3,4-oxadiazol-2(3H)-ones has been developed. The reaction involves a sequential condensation followed by tandem oxidative cyclization and rearrangement of
Novel synthesis, characterisation and antitumour activity of dimethyl-3,6-di(aryl)-1,4-dihydro-1,2,4,5-tetrazine-1,4-dicarboxylates
Lv, Lu-Ping,Zhou, Xiao-Feng,Shi, Hai-Bo,Gao, Jian-Rong,Hu, Wei-Xiao
, p. 368 - 370 (2014/07/08)
A series of new dimethyl-3,6-di(aryl)-1,4-dihydro-1,2,4,5-tetrazine-1,4- dicarboxylates were synthesised through an intermolecular cyclisation reaction of methyl N'-(a-chloro-substituted benzylidene) hydrazinecarboxylate and triethylamine. Their 1,4-dihyd
