2,5-Dihydroxyterephthalic acid → 4,6-Diamino-1,3-benzenediol 2,5-dihydroxyterepthalic acid

HRID 1172017

반응식

HRID 1172017 반응식
Cl.Cl.[NH2:3][C:4]1[CH:9]=[C:8]([NH2:10])[C:7]([OH:11])=[CH:6][C:5]=1[OH:12].[OH:13][C:14]1[CH:22]=[C:21]([C:23]([OH:25])=[O:24])[C:20]([OH:26])=[CH:19][C:15]=1[C:16]([OH:18])=[O:17].[Na+].[Na+].OC1C=C(C([O-])=O)C(O)=CC=1C([O-])=O>O.[OH-].[Na+]>[NH2:3][C:4]1[CH:9]=[C:8]([NH2:10])[C:7]([OH:11])=[CH:6][C:5]=1[OH:12].[OH:13][C:14]1[CH:22]=[C:21]([C:23]([OH:25])=[O:24])[C:20]([OH:26])=[CH:19][C:15]=1[C:16]([OH:18])=[O:17]

참가 물질

6

반응물 3

HCID 691312,5-Dihydroxyterephthalic acidHCID 27336484,6-Diaminoresorcinol Dihydrochloride2회HCID 178524618HCID 178524618, 화합물

생성물 1

HCID 1317284184,6-Diamino-1,3-benzenediol 2,5-dihydroxyterepthalic acid

시약·촉매·용매 2

HCID 962Water용매HCID 14798Sodium Hydroxide용매

실험 절차

7 Parts by weight of 4,6-diamino-1,3-benzenediol dihydrochloride was dissolved in 33 parts by weight of water deaerated with nitrogen. 6.180 Parts by weight of 2,5-dihydroxyterephthalic acid was dissolved in 64 parts by weight of a 1M sodium hydroxide aqueous solution, followed by deaeration with nitrogen. The 4,6-diamino-1,3-benzenediol dihydrochloride aqueous solution was dropwise added to the 2,5-dihydroxyterephthalic acid disodium salt aqueous solution over 10 minutes to form a white precipitate of 4,6-diamino-1,3-benzenediol/2,5-dihydroxyterepthalic acid salt. In this case, the reaction temperature was maintained at 90° C. The resultant salt was recovered by filtering and dispersed in, and mixed with, 3,000 parts by weight of water deaerated with nitrogen, followed by re-filtering. Procedures of the above dispersing/mixing and filtering were repeated 3 times.

출처 및 근거

ORD 기록
ord-dea1617d1fab4018b964b1ee9975a597
출처 데이터셋
uspto-grants-2010_11
특허 번호
US07833644B2

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