75672-95-6

Basic information

• Product Name: 2,2-bis(3'-n-propyl-4'-hydroxyphenyl)-propane
• Synonyms: 2,2-bis(3'-n-propyl-4'-hydroxyphenyl)-propane
• CAS NO: 75672-95-6
• Molecular Weight: 312.452
• Mol File: 75672-95-6.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: 2,2-bis(3'-n-propyl-4'-hydroxyphenyl)-propane(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2-bis(3'-n-propyl-4'-hydroxyphenyl)-propane(75672-95-6)
• EPA Substance Registry System: 2,2-bis(3'-n-propyl-4'-hydroxyphenyl)-propane(75672-95-6)

Safety Data

• Hazardous Substances Data: 75672-95-6(Hazardous Substances Data)

Upstream product

• 3739-67-1 bisphenol A diallyl ether 
• 80-05-7 BPA 
• 1745-89-7 2,2-bis(3-allyl-4-hydroxyphenyl)propane 

Relevant articles and documents

Synthesis of Covalently-Linked exo-Calixarenes

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Method for preparing aromatic bischloroformate compositions

Bischloroformate oligomer compositions are prepared by passing phosgene into a heterogeneous aqueous-organic mixture containing at least one dihydroxyaromatic compound, with simultaneous introduction of a base at a rate to maintain a specific pH range and to produce a specific volume ratio of aqueous to organic phase. By this method, it is possible to employ a minimum amount of phosgene. The reaction may be conducted batchwise or continuously. The bischloroformate composition may be employed for the preparation of cyclic polycarbonate oligomers or linear polycarbonate, and linear polycarbonate formation may be integrated with bischloroformate composition formation in a batch or continuous process.

Bischoloroformate preparation method with phosgene removal and monochloroformate conversion

Aqueous bischloroformates are prepared by the reaction of a dihydroxyaromatic compound (e.g., bisphenol A) with phosgene in a substantially inert organic liquid (e.g., methylene chloride) and in the presence of an aqueous alkali metal or alkaline earth metal base, at a pH below about 8. After all solid dihydroxyaromatic compound has been consumed, the pH is raised to a higher value in the range of about 7-12, preferably 9-11, and maintained in said range until a major proportion of the unreacted phosgene has been hydrolyzed. At the same time, any monochloroformate in the product may be converted to bischloroformate.