88609-14-7

Basic information

• Product Name: 2-Butenedioic acid, 2-[[2-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl]amino]-3-methoxy-, dimethyl ester
• CAS NO: 88609-14-7
• Molecular Formula: C18H21N3O5
• Molecular Weight: 359.382
• Mol File: 88609-14-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-Butenedioic acid, 2-[[2-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl]amino]-3-methoxy-, dimethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Butenedioic acid, 2-[[2-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl]amino]-3-methoxy-, dimethyl ester(88609-14-7)
• EPA Substance Registry System: 2-Butenedioic acid, 2-[[2-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl]amino]-3-methoxy-, dimethyl ester(88609-14-7)

Safety Data

• Hazardous Substances Data: 88609-14-7(Hazardous Substances Data)

Upstream product

• 67-56-1 methanol 
• 60418-46-4 1,3-dimethyl-5H-pyrazolo<1,2-a>benzotriazol-4-ium inner salt 
• 762-42-5 dimethyl acetylenedicarboxylate 

Downstream Products

• 60418-47-5 2-(3,5-dimethyl-1H-pyrazol-1-yl)benzenamine 

Relevant articles and documents

Heteropentalenes. The Thermal Addition of 1,3-Dimethylpyrazolobenzotriazole to Dimethyl Acetylenedicarboxylate

The title compound (3) reacts with dimethyl acetylenedicarboxylate with addition onto the azomethinimine moiety to give dimethyl 2a,4-dimethyl-4a,8b,8c-triazapentalenoindene-1,2-dicarboxylate (7) via a zwitterionic intermediate which can be trapped by protic solvents, e.g. methanol or water to give dimethyl 2--3-methoxymaleate (8) or tetramethyl 3,3'-bis-2,2'-oxydimaleate (9), respectively.The cycloadduct (7) undergoes spontaneous retrocycloaddition to dimethyl 3-methylpyrazolobenzo triazole-1,2-dicarboxylate (12) and radical cleavage to yield, unexpectedly, methyl 4,5-dihydro-2-methyl-4-oxopyrazoloquinoxaline-3-carboxylate (17) as the main product together with small amounts of two benzotriazolylpentenones (14) and (15).