GB672805A - Process for the manufacture of substituted tetralones - Google Patents

Process for the manufacture of substituted tetralones

Info

Publication number
GB672805A
GB672805A GB24406/49A GB2440649A GB672805A GB 672805 A GB672805 A GB 672805A GB 24406/49 A GB24406/49 A GB 24406/49A GB 2440649 A GB2440649 A GB 2440649A GB 672805 A GB672805 A GB 672805A
Authority
GB
United Kingdom
Prior art keywords
tetralones
alkoxy
manufacture
substituted tetralones
naphthohydroquinone
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
GB24406/49A
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.)
Organon NV
Original Assignee
Organon NV
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 Organon NV filed Critical Organon NV
Publication of GB672805A publication Critical patent/GB672805A/en
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
    • 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
    • C07C45/511—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 involving transformation of singly bound oxygen functional groups to >C = O groups
    • C07C45/512—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 involving transformation of singly bound oxygen functional groups to >C = O groups the singly bound functional group being a free hydroxyl group
    • 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
    • C07C45/511—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 involving transformation of singly bound oxygen functional groups to >C = O groups
    • C07C45/513—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 involving transformation of singly bound oxygen functional groups to >C = O groups the singly bound functional group being an etherified hydroxyl group
    • 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
    • C07C49/753—Unsaturated compounds containing a keto groups being part of a ring containing ether groups, groups, groups, or groups
    • C07C49/755—Unsaturated compounds containing a keto groups being part of a ring containing ether groups, groups, groups, or groups a keto group being part of a condensed ring system with two or three rings, at least one ring being a six-membered aromatic ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

6 - Alkoxy - 1 : 4 - naphthoquinones are hydrogenated with Raney nickel in benzene to the corresponding hydroquinones which are then alkylated in the 1 : 4-positions; partial hydrogenation of the product (e.g. with sodium in alcohol or liquid ammonia) gives 5 : 8-dialkoxy-2-tetralones. The example shows the production of 6-methoxy-1 : 4-naphthohydroquinone, 1 : 4 : 6 - trimethoxy - naphthalene and 5 : 8 - dimethoxy - 2 - tetralone. The Specification as open to inspection under Sect. 91 refers to 6-acyloxy as well as alkoxy-compounds and also to these substituents in the 5-position, when 1-tetralones are produced. This subject-matter does not appear in the Specification as accepted.
GB24406/49A 1948-10-02 1949-09-22 Process for the manufacture of substituted tetralones Expired GB672805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL672805X 1948-10-02

Publications (1)

Publication Number Publication Date
GB672805A true GB672805A (en) 1952-05-28

Family

ID=19802185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24406/49A Expired GB672805A (en) 1948-10-02 1949-09-22 Process for the manufacture of substituted tetralones

Country Status (1)

Country Link
GB (1) GB672805A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8470425B2 (en) 2009-10-01 2013-06-25 Milliken & Company Composite cores and panels
US8663791B2 (en) 2011-04-04 2014-03-04 Milliken & Company Composite reinforced cores and panels

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8470425B2 (en) 2009-10-01 2013-06-25 Milliken & Company Composite cores and panels
US9186863B2 (en) 2009-10-01 2015-11-17 Milliken & Company Composite cores and panels
US9731472B2 (en) 2009-10-01 2017-08-15 Milliken & Company Composite cores and panels
US8663791B2 (en) 2011-04-04 2014-03-04 Milliken & Company Composite reinforced cores and panels

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