141244-73-7

Basic information

• Product Name: 5-(p-tolyl)-1-(2,4-dibromophenyloxyoxyacetyl)-5-hydroxy-3-(5-nitro-2-furyl)pyrazoline
• CAS NO: 141244-73-7
• Molecular Weight: 579.201
• Mol File: 141244-73-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 5-(p-tolyl)-1-(2,4-dibromophenyloxyoxyacetyl)-5-hydroxy-3-(5-nitro-2-furyl)pyrazoline(CAS DataBase Reference)
• NIST Chemistry Reference: 5-(p-tolyl)-1-(2,4-dibromophenyloxyoxyacetyl)-5-hydroxy-3-(5-nitro-2-furyl)pyrazoline(141244-73-7)
• EPA Substance Registry System: 5-(p-tolyl)-1-(2,4-dibromophenyloxyoxyacetyl)-5-hydroxy-3-(5-nitro-2-furyl)pyrazoline(141244-73-7)

Safety Data

• Hazardous Substances Data: 141244-73-7(Hazardous Substances Data)

Upstream product

• 32023-48-6 1-(p-tolyl)-3-(5-nitro-2-furyl)-2-propyn-1-one 
• 141244-86-2 2,4-dibromophenyloxyacetylhydrazine 
• 32023-50-0 1-(4-methylphenyl)-3-(5-nitro-2-furyl) prop-2-en-1-one 
• 32023-51-1 2,3-Dibromo-3-(5-nitro-furan-2-yl)-1-p-tolyl-propan-1-one 

Relevant articles and documents

Reactions of aryloxyacetylhydrazines with α,β-acetylinic ketones

Reactions of aryloxyacetyl hydrazines with 1-aryl-3-(5-nitro-2-furyl)-2-propyn-1-ones (3) yield 5-aryl-1-aryloxyacetyl-5-hydroxy-3-(5-nitro-2-furyl)-pyrazolines (4) rather than the expected pyrazoles (5).These hydroxypyrazolines have been subjected to acid-catalyzed dehydration.Dehydration using con. sulfuric acid in refluxing ethanol yields 5-aryl-3-(5-nitro-2-furyl)pyrazoles (6) while on stirring with a few drops of con. sulphuric acid in gl. acetic acid results in the formation of 5-aryl-1-aryloxyacetyl-3-(5-nitro-2-furyl)pyrazoles (5).