5471-75-0

Basic information

• Product Name: 3-phenoxy-3-phenyl-2-benzofuran-1(3H)-one
• CAS NO: 5471-75-0
• Molecular Formula: C₂₀H₁₄O₃
• Molecular Weight: 302.3234
• Mol File: 5471-75-0.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 495.9°C at 760 mmHg
• Flash Point: 214.4°C
• Density: 1.269g/cm³
• Vapor Pressure: 5.69E-10mmHg at 25°C
• Refractive Index: 1.643
• CAS DataBase Reference: 3-phenoxy-3-phenyl-2-benzofuran-1(3H)-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3-phenoxy-3-phenyl-2-benzofuran-1(3H)-one(5471-75-0)
• EPA Substance Registry System: 3-phenoxy-3-phenyl-2-benzofuran-1(3H)-one(5471-75-0)

Safety Data

• Hazardous Substances Data: 5471-75-0(Hazardous Substances Data)

Upstream product

• 60-29-7 diethyl ether 
• 18852-53-4 3-chloro-3-phenylphthalide 
• 100-67-4 potassium phenolate 
• 71-43-2 benzene 
• 110-86-1 pyridine 
• 22103-85-1 2-benzoylbenzoyl chloride 
• 108-95-2 phenol 
• 85-52-9 2-Benzoylbenzoic acid 

Downstream Products

• 46796-03-6 2-Benzoyl-benzoic acid anion 
• 108-95-2 phenol 

Relevant articles and documents

Reactions of Carbonyl Compounds in Basic Solutions. Part 13. The Mechanism of the Alkaline Hydrolysis of 3-(3-Substituted Phenoxy)phthalides, -3-methylphthalides, -3-phenylphthalides, naphthalides, -3-phenylnaphthalides, and Phenanthralides, and of 3-Substituted 3-Methoxyphthalides

Rate coefficients have been measured for the alkaline hydrolysis of 3-(3-substituted phenoxy)phthalides, -3-methylphthalides, -3-phenylphthalides, naphthalides, -3-phenylnaphthalides, and phenanthralides at 30.0 and 50.0 deg C and for a series of methyl pseudo-2-acylbenzoates at several temperatures in 70percent (v/v) dioxane-water.The enthalpies and entropies of activation have been evaluated.The effects of substitution on the phenoxy esters have been assessed by means of the Hammett equation.The results for the methyl esters are related to the steric effect of substituentsusing the Taft equation.All the pseudo-esters are hydrolysed with rate-determining attack by hydroxide anion at the carbonyl group, followed by rapid ring fission to form the carboxylate anion of the corresponding acid as the product.Reactivity-selectivity is not shown over the whole range of the six series of the phenyl pseudo-esters.These results are discussed in terms of the structure of the transition state and the steric, stereochemical and polar factors influencing reactivity.