ES434922A1 - 2-halo-indan-1,3-diones and their use in preparing 2-nitro-indan-1,3 diones - Google Patents

2-halo-indan-1,3-diones and their use in preparing 2-nitro-indan-1,3 diones

Info

Publication number
ES434922A1
ES434922A1 ES434922A ES434922A ES434922A1 ES 434922 A1 ES434922 A1 ES 434922A1 ES 434922 A ES434922 A ES 434922A ES 434922 A ES434922 A ES 434922A ES 434922 A1 ES434922 A1 ES 434922A1
Authority
ES
Spain
Prior art keywords
diones
indan
formula
halo
nitro
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
ES434922A
Other languages
Spanish (es)
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.)
Beecham Group PLC
Original Assignee
Beecham Group PLC
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 Beecham Group PLC filed Critical Beecham Group PLC
Publication of ES434922A1 publication Critical patent/ES434922A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/45—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by at least one doubly—bound oxygen atom, not being part of a —CHO group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/10—Preparation of nitro compounds by substitution of functional groups by nitro groups
    • 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
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/63—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
    • C07C49/687—Unsaturated compounds containing a keto groups being part of a ring containing halogen
    • C07C49/697—Unsaturated compounds containing a keto groups being part of a ring containing halogen containing six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2602/00—Systems containing two condensed rings
    • C07C2602/02—Systems containing two condensed rings the rings having only two atoms in common
    • C07C2602/04—One of the condensed rings being a six-membered aromatic ring
    • C07C2602/08—One of the condensed rings being a six-membered aromatic ring the other ring being five-membered, e.g. indane

Abstract

A process for the preparation of derivatives of 2-nitroindan-1,3-diones of formula (I) ** (See formula) ** where R1 and R2 are the same or different and each is a lower alkyl group or R1 and R2 together form the remainder of a carbocyclic ring, a process comprising the reaction of a compound of formula (II) ** (See formula) ** where R1 and R2 are defined with respect to formula (I) and X is chlorine, bromine or iodine, with nucleophilic nitrite. (Machine-translation by Google Translate, not legally binding)
ES434922A 1974-02-21 1975-02-20 2-halo-indan-1,3-diones and their use in preparing 2-nitro-indan-1,3 diones Expired ES434922A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7842/74A GB1500485A (en) 1974-02-21 1974-02-21 2-halo-indan-1,3-diones and their use in preparing 2-nitro-indan-1,3 diones

Publications (1)

Publication Number Publication Date
ES434922A1 true ES434922A1 (en) 1977-03-16

Family

ID=9840834

Family Applications (1)

Application Number Title Priority Date Filing Date
ES434922A Expired ES434922A1 (en) 1974-02-21 1975-02-20 2-halo-indan-1,3-diones and their use in preparing 2-nitro-indan-1,3 diones

Country Status (6)

Country Link
JP (1) JPS50123650A (en)
CH (1) CH593905A5 (en)
DK (1) DK64275A (en)
ES (1) ES434922A1 (en)
GB (1) GB1500485A (en)
SE (1) SE7501879L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5810453A (en) * 1994-08-09 1998-09-22 O'brien; Colin Bicycle wheels having hub tightened spoke system
US6024414A (en) * 1997-08-25 2000-02-15 Dietrich; Rolf Tensioned spoked bicycle wheel assembly and hub therefor

Also Published As

Publication number Publication date
SE7501879L (en) 1975-08-22
DK64275A (en) 1975-10-27
CH593905A5 (en) 1977-12-30
GB1500485A (en) 1978-02-08
JPS50123650A (en) 1975-09-29

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