Ege, Guenter’s team published research in Chemische Berichte in 117 | CAS: 23286-70-6

Chemische Berichte published new progress about 23286-70-6. 23286-70-6 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Amine,Ester, name is Ethyl 5-amino-3-methyl-1H-pyrazole-4-carboxylate, and the molecular formula is C7H11N3O2, Application In Synthesis of 23286-70-6.

Ege, Guenter published the artcileReactions with diazoazoles, VII. 3H-Azolo-1,2,4-triazoles by 1,8- or 1,12-electrocyclizations of 3H-pyrazol-3-one- or 3H-indazol-3-one-(diorganylmethylene)hydrazones, Application In Synthesis of 23286-70-6, the publication is Chemische Berichte (1984), 117(5), 1726-47, database is CAplus.

Pyrazolotriazoles I [R1 = Ph, Me, PhCH2, H; R2 = Ph, H, CO2Et; R1R2 = (CH:CH)2; R3 = Ph, Me; R4 = Ph, 4-MeOC6H4, 4-O2NC6H4; R3R4 = 2-C6H4XC6H4-2, (CPh:CPh)2; X = bond, CH2CH2, O, CO, SO2] were prepared by cyclizing diazopyrazoles II with R3C(:N2)R4 and with fluorene ylides III (R5 = PPh3, piperidino, SMe2, SO2), or by cyclodehydrogenation of hydrazones IV. In both methods, the annulation of the triazole system results from 1,8- or 1,12-electrocyclization of intermediate azines, as, e.g., V.

Chemische Berichte published new progress about 23286-70-6. 23286-70-6 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Amine,Ester, name is Ethyl 5-amino-3-methyl-1H-pyrazole-4-carboxylate, and the molecular formula is C7H11N3O2, Application In Synthesis of 23286-70-6.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics