Phosphoric Acid → Anthrone

HRID 441591

반응식

HRID 441591 반응식
[C:1]12[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=1)NC(=O)O[C:2]2=[O:3].P(=O)(O)(O)O>>[CH:8]1[C:7]2[C:2](=[O:3])[C:1]3[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=3)[CH2:2][C:1]=2[CH:11]=[CH:10][CH:9]=1

참가 물질

3

반응물 2

HCID 1004Phosphoric AcidHCID 8359Isatoic Anhydride

생성물 1

HCID 7018Anthrone

실험 절차

A sample of dextrin was converted by known means to dextrin anthranilate by reaction with isatoic anhydride. The amino group of the anthranilyl radical was diazotized and the diazonium salt was coupled with a keratin hydrolyzate prepared by the partial hydrolysis of hog hair with phosphoric acid. The derivative product, an anthranilyl dextrin keratin polypeptide, was recovered by dialysis to remove salts, followed by lyophilization. Samples of wool, treated with 8% ammonium thioglycolate solution containing the dextrin derivative as a solute, for 15 to 30 minutes, followed by oxidation with 1.5% sodium bromate solution, washing with water and drying with acetone, showed no visual differences, but a portion thus treated gave a distinct carbohydrate test with anthrone reagent, while a control sample prepared by adsorption of the dextrin derivative from an aqueous 9.2 pH buffer solution showed a negative test. Thus, the carbohydrate definitely was coupled to the wool by the described procedure.

후처리

  1. customThe derivative product, an anthranilyl dextrin keratin polypeptide, was recovered by dialysis
  2. customto remove salts
  3. additionSamples of wool, treated with 8% ammonium thioglycolate solution
  4. additioncontaining the dextrin derivative as a solute, for 15 to 30 minutes
  5. washwashing with water
  6. dry with materialdrying with acetone
  7. additiona portion thus treated

출처 및 근거

ORD 기록
ord-f734115064a543f99514b3d90d402ccb
출처 데이터셋
uspto-grants-1977_08
특허 번호
US04041150

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