79823-72-6

Upstream product

• 39632-87-6 ethyl 3-amino-3-ethoxypropenoate 
• 52508-81-3 3-Amino-3-(1-pyrrolidinyl)acrylsaeure-ethylester 
• 79823-58-8 2-(Amino-1-pyrrolidinylmethylen)-3-cyano-3-(methoxycarbonylimino)propionsaeure-ethylester 
• 79823-59-9 4,5-Dihydro-5-imino-4-(methoxycarbonylimino)-2-(1-pyrrolidinyl)-1H-pyrrol-3-carbonsaeure-ethylester 
• 62-53-3 aniline 

Relevant academic research and scientific papers

Condensations with Oxime O-Sulfonates, I. - Synthesis of 2-Amino-4,5-dihydro-4,5-diimino-1H-pyrrole-3-carboxylates

The reaction of the oxime O-tosylates 1 with amidinoacetic acid esters 2 does not lead to the expected pyrazines 4, but rather to the novel 4,5-dihydro-1H-pyrrole-3-carboxylates 8 (= 2-pyrroline-3-carboxylates) by rearrangement via 7.The hydrolysis of the pyrroles 8 and their reactions with amines have been studied.