摘要:
PROBLEM TO BE SOLVED: To provide a method for producing a fluorine-containing polymerizable monomer, with which a fluorine-containing compound with a hydroxy fluoroalkyl group bonded to the para position thereof is obtained with high selectivity by making phenols and a fluorine-containing ketone react with each other.SOLUTION: A fluorine-containing compound of general formula (3) is obtained by making a compound of general formula (1) and a fluorine-containing ketone of general formula (2) react with each other in the presence of a fluorine-containing acid catalyst (in formulas, R-Rrespectively and independently represent a hydrogen atom, a straight chain, branched or cyclic alkyl group, an alkenyl group, and so on, and optionally have a fluorine or oxygen atom, Rand Rare optionally bonded to each other and either of them has a fluorine atom, X is an integer of 0-2, and Y is an integer of 0-8).
摘要:
PROBLEM TO BE SOLVED: To provide a novel medical agent which is a new biphenyl compound. SOLUTION: The compound of general formula (I) is used as a medical agent äwherein R 5 is -[A]-CH 3 , -[A]-C(OH)ZZ' or -[A]-C(O)Z" (-[A]- is alkylene, alkenylene or alkynylene or a single bond; and Z, Z' and Z" are each hydrogen or an optionally substituted alkyl, alkenyl, alkynyl or aryl); and R 1 , R 2 , R 3 , R 4 , R 6 , R 7 and R 8 are as defined in the specification}. COPYRIGHT: (C)2011,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a method of industrially producing 2-(4-hydroxyphenyl)hexafluoropropan-2-ol (a p-M isomer) from hexafluoroacetone and phenol, capable of securing high selectivity of the p-M isomer and of simplifying a purification process for obtaining a product of high purity. SOLUTION: There is provided the method of producing 2-(4-hydroxyphenyl)hexafluoropropan-2-ol by allowing hexafluoroacetone to react with phenol in the presence of hydrogen fluoride, wherein 1 to 5 moles of hexafluoroacetone and 1 to 200 moles of hydrogen fluoride relative to 1 mole of phenol are used at a reaction temperature of 0 to 50°C. COPYRIGHT: (C)2011,JPO&INPIT