AR072769A1 - Procesopara preparar reina - Google Patents

Procesopara preparar reina

Info

Publication number
AR072769A1
AR072769A1 ARP090100512A ARP090100512A AR072769A1 AR 072769 A1 AR072769 A1 AR 072769A1 AR P090100512 A ARP090100512 A AR P090100512A AR P090100512 A ARP090100512 A AR P090100512A AR 072769 A1 AR072769 A1 AR 072769A1
Authority
AR
Argentina
Prior art keywords
reine
procesopara
queen
prepare
optionally
Prior art date
Application number
ARP090100512A
Other languages
English (en)
Inventor
Napoli Alessandro Di
Napoli Guido Di
Original Assignee
Medidom Lab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medidom Lab filed Critical Medidom Lab
Publication of AR072769A1 publication Critical patent/AR072769A1/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/285—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with peroxy-compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Proceso para la preparacion de reína o diacereína que comprende oxidar aleo-emodina con peroxido de hidrogeno o un oxidante de peroxido de metal alcalino en un medio de reaccion básico, opcionalmente en presencia de un solvente orgánico, para obtener reína. Opcionalmente es seguido por acetilacion de la reína obtenida de esta manera usando un agente de acetilacion para obtener diacereína. Reivindicacion 7: Un proceso de acuerdo con la reivindicacion 6, caracterizado porque el solvente orgánico es uno o más solventes orgánicos seleccionados del grupo que consiste en 1,2-dimetoxietano, tetrahidrofurano, 1,4-dioxano, isopropil éter, ter-butil metil éter o ter-butanol.
ARP090100512A 2008-02-29 2009-02-13 Procesopara preparar reina AR072769A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2008/000447 WO2009106908A1 (en) 2008-02-29 2008-02-29 Process for preparing rhein

Publications (1)

Publication Number Publication Date
AR072769A1 true AR072769A1 (es) 2010-09-22

Family

ID=40243887

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP090100512A AR072769A1 (es) 2008-02-29 2009-02-13 Procesopara preparar reina

Country Status (2)

Country Link
AR (1) AR072769A1 (es)
WO (1) WO2009106908A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102875369B (zh) * 2011-07-15 2014-09-24 台州海辰药业有限公司 大黄酸的合成方法
CN106966891A (zh) * 2017-02-07 2017-07-21 刘瀚文 一种大黄酸的全合成工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1264545B1 (it) 1993-07-30 1996-10-02 Medidom Lab Procedimento per la preparazione della diacereina
US5652265A (en) 1995-03-29 1997-07-29 Wisconsin Alumni Research Foundation Production of rhein and rhein derivatives
IT1297038B1 (it) 1997-12-30 1999-08-03 Medidom Lab Procedimento per la preparazione di reina e suoi diacilderivati
EP1666446A1 (en) 2004-11-12 2006-06-07 Laboratoire Medidom S.A. Process for preparing rhein and diacerein

Also Published As

Publication number Publication date
WO2009106908A1 (en) 2009-09-03

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