摘要:
PROBLEM TO BE SOLVED: To provide a method for producing an aromatic ester compound which can achieve facilitation and cost reduction of production and can be obtained with a high yield by reducing pollution and reducing an environmental load.SOLUTION: There is provided a method for producing an aromatic ester compound from an aromatic compound, the method comprising the steps of: step S1 of mixing the aromatic compound with a formic acid ester compound or a formamide compound and a strong basic compound; and a step S2 of mixing an oxidizing agent with alcohol and a weak basic compound.
摘要:
PROBLEM TO BE SOLVED: To provide a method for producing a compound having an ester bond and/or amide bond, with a small content of impurities in high yield; and to provide a high purity compound obtained by the method.SOLUTION: There is provided a method for producing a mixed acid anhydride (4) by adding a compound (1) having at least one carboxy group and a base (2) simultaneously without mixing in advance to an acid halide compound (3) to react them. Also a method for producing an ester compound and/or amide compound (6) is provided which comprises: adding a compound (1) having at least one carboxy group and a base (2) simultaneously without mixing in advance to an acid halide compound (3) to react them to produce a mixed acid anhydride (4); and thereafter reacting with a compound (5) having at least one group selected from a hydroxy group, mercapto group and/or amino group.
摘要:
PROBLEM TO BE SOLVED: To provide a comonomer for production of polycarbonate resin comprising a high-purity diester diol, and a method for producing the same. SOLUTION: The comonomer for production of a polycarbonate resin is represented by the general formula (I), wherein R 1 and R 2 each independently represents a 1-3C alkyl group, Y represents a 2-15C linear or branched alkylene group, p and q each independently represents an integer of 0-4, respectively, r represents an integer of 2-450, and has a tin content (as an element) of not more than 10 ppm. The present invention is a method for producing a comonomer for production of a polycarbonate resin having a tin content (as an element) of not more than 10 ppm by esterification or transesterfication reaction of hydroxybenzoic acid alkyl esters and polyalkylene ether glycol in the presence of a tin-based catalyst to obtain a reaction mixture containing a compound represented by the general formula (I), followed by a treatment of the reaction mixture with an aqueous phosphoric acid solution or a solid adsorbent. COPYRIGHT: (C)2010,JPO&INPIT