119987-21-2

Basic information

• Product Name: 3-Butenoic acid, 2-diazo-4-phenyl-, methyl ester, (E)-
• CAS NO: 119987-21-2
• Molecular Formula: C11H10N2O2
• Molecular Weight: 202.213
• Mol File: 119987-21-2.mol
• Article Data: 21

Chemical Properties

• CAS DataBase Reference: 3-Butenoic acid, 2-diazo-4-phenyl-, methyl ester, (E)-(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Butenoic acid, 2-diazo-4-phenyl-, methyl ester, (E)-(119987-21-2)
• EPA Substance Registry System: 3-Butenoic acid, 2-diazo-4-phenyl-, methyl ester, (E)-(119987-21-2)

Safety Data

• Hazardous Substances Data: 119987-21-2(Hazardous Substances Data)

Upstream product

• 36626-29-6 (2-carboxyethyl)triphenylphosphonium chloride 
• 100-52-7 benzaldehyde 
• 77-78-1 dimethyl sulfate 
• 24891-74-5 4-phenyl-but-3-enoic acid methyl ester 
• 104-54-1 3-Phenylpropenol 
• 2243-53-0 styrylacetic acid 
• 2243-53-0 trans-styrylacetic acid 
• 91083-82-8 (E)-methyl 4-phenylbut-3-enoate 

Downstream Products

• 126554-30-1 (1S,4S,5R)-4-Phenyl-8-aza-bicyclo[3.2.1]octa-2,6-diene-2,8-dicarboxylic acid dimethyl ester 
• 140928-57-0 Methyl 2β-ethoxy-3β-methyl-1β-((E)-2-phenylethenyl)cyclopropane-1α-carboxylate 
• 159420-69-6 3-methoxy-5-(methoxycarbonyl)-7-phenylcyclohepta-2,4,6-trien-1-one 
• 193079-04-8 methyl (1R,2R)-2-phenyl-1-[(E)-2-phenylvinyl]cyclopropanecarboxylate 
• 153062-73-8 (1S,2S)-methyl 2β-phenyl-1β-((E)-2-phenylethenyl)cyclopropane-1α-carboxylate 

Relevant articles and documents

Highly selective catalyst-directed pathways to dihydropyrroles from vinyldiazoacetates and imines

Copper-catalyzed reactions of vinyldiazoacetates with imines occur via a pathway in which the activated imine undergoes electrophilic addition to the vinyldiazo compound, whereas reactions catalyzed by rhodium(II) proceed through a metal carbene to an int

Tris(pentafluorophenyl)borane-Catalyzed Carbenium Ion Generation and Autocatalytic Pyrazole Synthesis—A Computational and Experimental Study

In recent years, metal-free organic synthesis using triarylboranes as catalysts has become a prevalent research area. Herein we report a comprehensive computational and experimental study for the highly selective synthesis of N-substituted pyrazoles throu

Borane catalysed cyclopropenation of arylacetylenes

Triarylboranes have gained substantial attention as catalysts for C-C bond forming reactions due to their remarkable catalytic activities. Herein, we report B(C6F5)3catalysed cyclopropenation of a wide variety of arylacetylenes using donor-acceptor diazoesters. A mild reaction protocol has been developed for the synthesis of functionalised cyclopropenes (33 examples) in good to excellent yields.

Intramolecular Cyclization of Vinyldiazoacetates as a Versatile Route to Substituted Pyrazoles

Vinyldiazo compounds undergo a thermal electrocyclization to form pyrazoles in yields of up to 95percent. The reactions are operationally simple, use readily available starting materials, require no intervention of a catalyst, and enable the synthesis of mono-, di- A nd tri-substituted pyrazoles. With the ability to produce highly substituted pyrazoles and the flexibility in installing various types of substituents, this method constitutes a new entry to this valuable heterocyclic scaffold and may be of interest to all branches of the chemical industry.