84251-29-6

Basic information

• Product Name: bis(3-hydroxyphenyl)phosphinic acid
• CAS NO: 84251-29-6
• Molecular Formula: C₁₂H₁₁O₄P
• Molecular Weight: 250.1871
• Mol File: 84251-29-6.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 610.3°C at 760 mmHg
• Flash Point: 322.9°C
• Density: 1.48g/cm³
• Vapor Pressure: 9.45E-16mmHg at 25°C
• Refractive Index: 1.67
• CAS DataBase Reference: bis(3-hydroxyphenyl)phosphinic acid(CAS DataBase Reference)
• NIST Chemistry Reference: bis(3-hydroxyphenyl)phosphinic acid(84251-29-6)
• EPA Substance Registry System: bis(3-hydroxyphenyl)phosphinic acid(84251-29-6)

Safety Data

• Hazardous Substances Data: 84251-29-6(Hazardous Substances Data)

Upstream product

• 18593-20-9 bis-(3-nitrophenyl)phosphinic acid 
• 2398-37-0 3-methoxyphenyl bromide 
• 84251-27-4 bis-(3-methoxyphenyl)phosphinic acid 
• 25806-71-7 bis(3-aminophenyl)phosphinic acid 

Relevant articles and documents

Synthesis of Substituted Dibenzophospholes. Part 2. Syntheses of Intermediate Biphenyls and Quaterphenyls

A general procedure for synthesis of 4",6'-dialkoxy-2',2"-diamino-m-quaterphenyls has been established.Copper(I) t-butoxide is used to prepare 2,6-dinitrophenyls from 1,3-dinitrobenzene and aryl iodides.One of the nitro-groups is then exchanged for a methoxy-group by sodium methoxide in hexamethylohosphoramide; the resulting 2-methoxy-6-nitrobiphenyls are then iodinated in the 5-position.Ullmann coupling then gives the dinitroquaterphenyls which are reduced to the diamines.An alternative route from 2,2',4,4'-tetranitrobiphenyl was explored; arylation was easy but alkoxydenitration was indiscriminate.Some 71 new derivatives of biphenyl, terphenyl, and quterphenyl are reported.