Makhseed, Saad published the artcileStudies with 2-(arylhydrazono)aldehydes: Synthesis and chemical reactivity of mesoxalaldehyde 2-arylhydrazones and of ethyl 2-arylhydrazono-3-oxopropionates, SDS of cas: 924-99-2, the publication is Zeitschrift fuer Naturforschung, B: Chemical Sciences (2007), 62(4), 529-536, database is CAplus.
The coupling reaction of 3-(dimethylamino)acrolein and Et 3-(dimethylamino)acrylate with arenediazonium chlorides afforded the 2-(arylhydrazono)aldehydes RC6H4NHN:CR1CHO [I, R = 4-Cl, H, 4-OMe, 3-Cl; R1 = CHO, CO2Et]. I [R = H, 4-Cl, R1 = CHO] reacted with hydroxylamine hydrochloride to yield the oximes. The dioxime was obtained from reaction of I [R = 4-Cl, R1 = CHO] with an excess of hydroxylamine hydrochloride. This dioxime afforded the 1,2,3-triazolecarbonitrile when treated with acetic anhydride, while α-hydrazonopropionitrile was obtained with acetic acid. I could be used for the synthesis of a variety of pyrazoles and arylazolopyrimidines via reaction with hydrazines, halo ketones and amino azoles, resp.
Zeitschrift fuer Naturforschung, B: Chemical Sciences published new progress about 924-99-2. 924-99-2 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Amine,Aliphatic hydrocarbon chain,Ester, name is Ethyl 3-(dimethylamino)acrylate, and the molecular formula is C7H13NO2, SDS of cas: 924-99-2.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics