ES481235A1 - Un procedimiento para la preparacion de 6 cloro-2,3-dihidro-xi-1, 4-naftoquinona y sus 2,3-diesteres. - Google Patents

Un procedimiento para la preparacion de 6 cloro-2,3-dihidro-xi-1, 4-naftoquinona y sus 2,3-diesteres.

Info

Publication number
ES481235A1
ES481235A1 ES481235A ES481235A ES481235A1 ES 481235 A1 ES481235 A1 ES 481235A1 ES 481235 A ES481235 A ES 481235A ES 481235 A ES481235 A ES 481235A ES 481235 A1 ES481235 A1 ES 481235A1
Authority
ES
Spain
Prior art keywords
naphthoquinone
dihydroxy
chloro
diesters
preparation
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES481235A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Syntex USA LLC
Original Assignee
Syntex USA LLC
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 Syntex USA LLC filed Critical Syntex USA LLC
Publication of ES481235A1 publication Critical patent/ES481235A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C50/00—Quinones
    • C07C50/26—Quinones containing groups having oxygen atoms singly bound to carbon atoms
    • C07C50/32—Quinones containing groups having oxygen atoms singly bound to carbon atoms the quinoid structure being part of a condensed ring system having two rings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00—Drugs for dermatological disorders
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
    • C07C17/14—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the side-chain of aromatic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • C07C45/54—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of compounds containing doubly bound oxygen atoms, e.g. esters
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00—Preparation of quinones

Abstract

Un procedimiento para la preparación de 6-cloro-2,3-dihidroxi- 1,4-naftoquinona y sus 2,3-diésteres, representados por la fórmula general **(Fórmula)** en donde R es hidrógeno o R1C(O)- y R1 es alquilo con uno a cinco átomos de carbono, caracterizado porque cuando en la fórmula general citada R es hidrógeno, comprende hacer reaccionar el 4-cloro-1,2-ftaldehido con glioxal, u opcionalmente, oxidar 6-cloro-2-hidroxi-1,4-naftoquinona, 7- cloro-2-hidroxi-1,4-naftoquinona o sus mezclas a una temperatura comprendida entre 0ºC y la temperatura de ebullición del medio reaccional.
ES481235A 1978-06-05 1979-06-04 Un procedimiento para la preparacion de 6 cloro-2,3-dihidro-xi-1, 4-naftoquinona y sus 2,3-diesteres. Expired ES481235A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/912,697 US4229478A (en) 1978-06-05 1978-06-05 Naphthaquinone anti-psoriatic agents

Publications (1)

Publication Number Publication Date
ES481235A1 true ES481235A1 (es) 1980-02-16

Family

ID=25432288

Family Applications (1)

Application Number Title Priority Date Filing Date
ES481235A Expired ES481235A1 (es) 1978-06-05 1979-06-04 Un procedimiento para la preparacion de 6 cloro-2,3-dihidro-xi-1, 4-naftoquinona y sus 2,3-diesteres.

Country Status (6)

Country Link
US (1) US4229478A (es)
EP (1) EP0007985B1 (es)
JP (1) JPS5511573A (es)
AT (1) ATE1500T1 (es)
DE (1) DE2963603D1 (es)
ES (1) ES481235A1 (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442127A (en) * 1978-06-05 1984-04-10 Syntex (U.S.A.) Inc. Naphthoquinone anti-psoriatic agents
US4419368A (en) * 1978-06-05 1983-12-06 Syntex (U.S.A.) Inc. Naphthoquinone anti-psoriatic agents
US4466981A (en) * 1982-10-27 1984-08-21 Syntex (U.S.A.) Inc. Naphthalene anti-psoriatic agents
DE3347658A1 (de) * 1983-12-31 1985-07-11 Troponwerke GmbH & Co KG, 5000 Köln 1.4-naphthochinonderivate mit entzuendungshemmender wirkung
NO850311L (no) * 1984-01-27 1985-07-29 Syntex Inc Fremgangsmaate for fremstilling av terapeutisk aktive naftalen-derivater
US4562004A (en) * 1984-03-14 1985-12-31 Basf Aktiengesellschaft 2,3,5,6-Tetrasubstituted p-benzoquinones and their preparation
DE3431236A1 (de) * 1984-08-24 1986-02-27 Carnivora-Deutschland GmbH, 7109 Jagsthausen Verwendung von 1,4-naphthochinon-derivaten in niedrigen konzentrationen zur immunstimulation
US4592867A (en) * 1984-10-19 1986-06-03 Energy Conversion Devices, Inc. Synthesis method for reductant precursor
KR880011089A (ko) * 1987-03-09 1988-10-26 허위그 본 모르쯔 건선 치료제로서 유용한 나프탈렌 유도체 및 이의 제조방법
US5134161A (en) * 1987-03-09 1992-07-28 Syntex (U.S.A.) Inc. Method for treating disease states in mammals with naphthalene lipoxygenase-inhibiting agents
US4786652A (en) * 1987-03-09 1988-11-22 Syntex (U.S.A.) Inc. Naphthalene anti-psoriatic agents
US4840965A (en) * 1987-07-07 1989-06-20 Syntex (U.S.A.) Inc. Naphthalene anti-psoriatic agents
US5849793A (en) * 1997-08-15 1998-12-15 The Picower Institute For Medical Research HIV matrix protein tyrosine position 29 pocket binders
BE1012264A3 (fr) * 1998-11-05 2000-08-01 Solvay Nouvelles naphtalenediones et leur utilisation dans la preparation d' anthracenediones.
US6884797B2 (en) * 2001-03-30 2005-04-26 Robert F. Hofmann Targeted oxidative therapeutic formulation
US20100010100A1 (en) * 2008-07-09 2010-01-14 Hinman Andrew W Dermatological compositions with anti-aging and skin even-toning properties
US20100029784A1 (en) * 2008-07-30 2010-02-04 Hinman Andrew W Naphthoquinone compositions with anti-aging, anti-inflammatory and skin even-toning properties

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914264A (en) * 1975-01-30 1975-10-21 American Cyanamid Co 2-Lower alkoxy-3-(lower alkylthio)-1,4-naphthoquinone

Also Published As

Publication number Publication date
JPS6256851B2 (es) 1987-11-27
EP0007985A1 (en) 1980-02-20
JPS5511573A (en) 1980-01-26
ATE1500T1 (de) 1982-09-15
EP0007985B1 (en) 1982-09-01
US4229478A (en) 1980-10-21
DE2963603D1 (en) 1982-10-28

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19960603