摘要:
PROBLEM TO BE SOLVED: To provide a method of producing 2,2-bis(4-hydroxyphenyl)hexafluoropropane-quaternary phosphonium salt suitable for production on an industrial scale.SOLUTION: In a method of producing 2,2-bis(4-hydroxyphenyl)hexafluoropropane-quaternary phosphonium salt, 2,2-bis(4-hydroxyphenyl)hexafluoropropane is reacted with an alkali metal hydroxide, an alkali metal alkoxide or an alkali metal carbonate in the presence of water to produce an alkali metal salt of the propane, and the obtained alkali metal salt is reacted with a quaternary phosphonium salt. Since water is used as a solvent, the 2,2-bis(4-hydroxyphenyl)hexafluoropropane-quaternary phosphonium salt can be produced without a load on the treatment of waste liquid. Further, impurities can be separated easily from the obtained phosphonium salt only by a filtration operation. The method is superior for efficient production on an industrial scale.
摘要:
PROBLEM TO BE SOLVED: To provide a method for producing a compound, in which an aromatic compound containing a radioactive halogen-substituted group is combined with an amine or phosphine, in a yield to stand practical use. SOLUTION: The production method comprises directly reacting a radioactive halogen-containing alcohol having a structure in which one or more hydrogens in an aromatic compound are replaced with radioactive halogens and the compound is combined with a hydroxy group through an alkylene group, with any of various amines or phosphines under an acidic condition. The number of processes after radioactive halogen labeling is reduced and the yield of the objective compound is improved. COPYRIGHT: (C)2007,JPO&INPIT
摘要:
Provided is a novel amine compound represented by the following formula (I) having a superior peripheral blood lymphocyte decreasing action and superior in the immunosuppressive action, rejection suppressive action and the like, which shows decreased side effects of, for example, bradycardia and the like, or a pharmaceutically acceptable acid addition salt thereof, or a hydrate thereof, or a solvate thereof. wherein each symbol is as defined in the specification.
摘要:
PROBLEM TO BE SOLVED: To provide a method for easily producing a bis (perfluoroalkyl)phosphinic acid and a salt thereof at low cost and in high yield. SOLUTION: The method includes conducting a reaction, with hydrogen fluoride, at least in a suitable reaction solvent, of at least one difluorotris(perfluoroalkyl)phosphorane or at least one trifluorobis (perfluoroalkyl)phosphorane (also including heating the resultant reaction mixture) to prepare the bis(perfluoroalkyl)phosphinic acid, which is also neutralized with an amine or the like to obtain a salt thereof. COPYRIGHT: (C)2010,JPO&INPIT