88740-94-7

Basic information

• Product Name: 1-[(4-bromophenyl)methylene]-5,5-dimethyl-3-oxopyrazolidin-1-ium-2-ide
• Synonyms: 1-[(4-bromophenyl)methylene]-5,5-dimethyl-3-oxopyrazolidin-1-ium-2-ide
• CAS NO: 88740-94-7
• Molecular Weight: 281.152
• Mol File: 88740-94-7.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 1-[(4-bromophenyl)methylene]-5,5-dimethyl-3-oxopyrazolidin-1-ium-2-ide(CAS DataBase Reference)
• NIST Chemistry Reference: 1-[(4-bromophenyl)methylene]-5,5-dimethyl-3-oxopyrazolidin-1-ium-2-ide(88740-94-7)
• EPA Substance Registry System: 1-[(4-bromophenyl)methylene]-5,5-dimethyl-3-oxopyrazolidin-1-ium-2-ide(88740-94-7)

Safety Data

• Hazardous Substances Data: 88740-94-7(Hazardous Substances Data)

Upstream product

• 1122-91-4 4-bromo-benzaldehyde 
• 26485-13-2 5,5-Dimethylpyrazolidon-⁽³⁾ 
• 42953-82-2 5,5-dimethylpyrazolidin-3-one 
• 638-10-8 ethyl 3-methylbut-2-enoate 

Downstream Products

• 1039170-21-2 (5S,6R)-6-(1-benzyl-5,5-dimethyl-3-oxopyrazolidine-2-carbonyl)-3,3-dimethyl-5-(4-bromo-phenyl)-tetrahydropyrazolo[1,2-a]pyrazol-1(5H)-one 
• 1253374-45-6 (5S,6R)-6-hydroxymethyl-3,3-dimethyl-5-(4-bromophenyl)tetrahydropyrazolo[1,2-a]pyrazol-1-one 
• 1257296-73-3 1-(2,2,2-trifluoro-1-(4-bromophenyl)ethyl)-5,5-dimethylpyrazolidin-3-one 
• 1190864-46-0 1-((S)-2,2,2-trifluoro-1-(4-bromophenyl)ethyl)-5,5-dimethylpyrazolidin-3-one 
• 88740-96-9 4,4-Dimethyl-6-(4-bromphenyl)-1,5-diazabicyclo-<3,1,0>-hexan-2-on 

Relevant articles and documents

Copper-Catalyzed Sequential Azomethine Imine-Alkyne Cycloaddition and Umpolung Thiolation Reactions

Copper-catalyzed sequential 1,3-dipolar cycloadditions of azomethine imines and alkynes and electrophilic thiolations are described. The C?S, C?N, and C?C bonds were simultaneously formed in one pot, leading to N,N-bicyclic pyrazolidinones in good to exce

Copper(II)-catalyzed exo and enantioselective cycloadditions of azomethine imines

(Chemical Equation Presented) A strategy for exo and enantioselective 1,3-dipolar cycloaddition of azomethine imines to 2-acryloyl-3-pyrazolidinone is described. The corresponding cycloadducts are isolated with high diastereoselectivities (up to > 96:4 ex