Japan Intellectual Property Rights: METHOD FOR PRODUCING 2,2'-BIS(2-HYDROXYETHOXY)-1,1'-BINAPHTHALENE

Japan, March 5 -- TAOKA CHEM CO LTD has got intellectual property rights for 'METHOD FOR PRODUCING 2,2'-BIS(2-HYDROXYETHOXY)-1,1'-BINAPHTHALENE.' Other related details are as follows:

Application Number: JP,2022-051750

Category (FI): C07C43/23@A,C07C41/58

Stage: PROBLEM TO BE SOLVED: To provide a method for producing 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene that is more suitable for industrial-scale execution.SOLUTION: It was found that the problem can be solved by precipitating crystals of 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene from a solution of 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene and a solvent comprising an aromatic hydrocarbon and methanol at a specific ratio and, thereby, 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthale...