Acetic Acid → p-Toluenesulfonic acid

HRID 2309155

Reaktionsgleichung

Reaktionsgleichung von HRID 2309155
COC1C=CC(C[O:8][N:9]([CH2:20][CH2:21][CH2:22][P:23](=[O:34])([O:29]CCCC)[O:24]CCCC)[S:10]([C:13]2[CH:19]=[CH:18][C:16]([CH3:17])=[CH:15][CH:14]=2)(=[O:12])=[O:11])=CC=1.Cl.C(O)(=[O:40])C.C>O>[C:16]1([CH3:17])[CH:15]=[CH:14][C:13]([S:10]([OH:11])(=[O:12])=[O:40])=[CH:19][CH:18]=1.[OH:8][NH:9][CH2:20][CH2:21][CH2:22][P:23](=[O:24])([OH:34])[OH:29]

Komponenten

7

Edukt 4

HCID 176Acetic AcidHCID 297MethaneHCID 313Hydrochloric AcidHCID 20185706dibutyl 3-[N-(p-methoxybenzyloxy)-N-tosylamino]propylphosphonate

Produkt 2

HCID 6101p-Toluenesulfonic acidHCID 3421703-(Hydroxyamino)propylphosphonic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A mixture of dibutyl 3-[N-(p-methoxybenzyloxy)-N-tosylamino]propylphosphonate (28.4 g), 6N hydrochloric acid (280 ml) and acetic acid (280 ml) was refluxed with stirring for 20 hours. The resultant mixture was concentrated under reduced pressure to give a residue, and then water was added thereto. The mixture was treated with an activated charcoal, whereafter the mixture was concentrated under reduced pressure to give an oily residue. The oily residue was washed with ether and dried under reduced pressure. The solid was washed with acetonitrile and ethyl ether to give p-toluenesulfonic acid salt of 3-(N-hydroxyamino)propylphosphonic acid (12.4 g) in the form of crystals. M.P.: 129°-135° C.

Aufarbeitung

  1. temperaturewas refluxed
  2. concentrationThe resultant mixture was concentrated under reduced pressure
  3. customto give a residue
  4. concentrationwas concentrated under reduced pressure
  5. customto give an oily residue
  6. washThe oily residue was washed with ether
  7. customdried under reduced pressure
  8. washThe solid was washed with acetonitrile and ethyl ether

Quellen und Nachweise

ORD-Eintrag
ord-2354d61a2f484c5b8d76ed12e7f6b6d0
Quelldatensatz
uspto-grants-1987_09
Patentnummer
US04693742

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