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GB1529326A - Boron esters and their use in a process for synthesis of coenzymes q - Google Patents

Boron esters and their use in a process for synthesis of coenzymes q

Info

Publication number
GB1529326A
GB1529326A GB47905/75A GB4790575A GB1529326A GB 1529326 A GB1529326 A GB 1529326A GB 47905/75 A GB47905/75 A GB 47905/75A GB 4790575 A GB4790575 A GB 4790575A GB 1529326 A GB1529326 A GB 1529326A
Authority
GB
United Kingdom
Prior art keywords
benzohydroquinone
boron
prepared
ester
benzoquinones
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
GB47905/75A
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.)
Eisai Co Ltd
Original Assignee
Eisai Co Ltd
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 Eisai Co Ltd filed Critical Eisai Co Ltd
Priority claimed from US05/725,427 external-priority patent/US4057568A/en
Publication of GB1529326A publication Critical patent/GB1529326A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/02—Boron compounds
    • C07F5/022—Boron compounds without C-boron linkages
    • 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
    • C07C50/28—Quinones containing groups having oxygen atoms singly bound to carbon atoms with monocyclic quinoid structure
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/02—Boron compounds
    • C07F5/05—Cyclic compounds having at least one ring containing boron but no carbon in the ring

Landscapes

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

Abstract

1529326 Boron esters and benzoquinones prepared therefrom EISAI CO Ltd 21 Nov 1975 [22 Nov 1974] 47905/75 Headings C2B and C2C A boron ester of a 1,4-benzohydroquinone of formula where R is a group in which S is O or 1-11 and A and B are each H or together form a direct bond, is prepared by reacting a boron ester of 2,3-dimethoxy-5- methyl-1,4-benzohydroquinone with a prenol or isoprenol or reactive derivative thereof. The ester reactant may be obtained by reaction of the 2,3,5-substituted hydroquinone with H 3 BO 3 , HBO 2 , B 2 O 3 or borax and may also be of the type the free OH groups of which may be further esterified with the hydroquinone compound. Pharmaceutically active benzoquinones of formula are prepared by reacting a boron ester of a 1,4- benzohydroquinone II with a mild oxidant such as silver oxide, lead oxide or ferric chloride.
GB47905/75A 1974-11-22 1975-11-21 Boron esters and their use in a process for synthesis of coenzymes q Expired GB1529326A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP49133573A JPS5826327B2 (en) 1974-11-22 1974-11-22 Hokosokyuuruino Goseihou
US05/725,427 US4057568A (en) 1974-11-22 1976-09-22 Process for synthesis of boric acid ester

Publications (1)

Publication Number Publication Date
GB1529326A true GB1529326A (en) 1978-10-18

Family

ID=26467897

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47905/75A Expired GB1529326A (en) 1974-11-22 1975-11-21 Boron esters and their use in a process for synthesis of coenzymes q

Country Status (7)

Country Link
JP (1) JPS5826327B2 (en)
CH (1) CH613682A5 (en)
DE (1) DE2552365C2 (en)
FR (1) FR2291980A1 (en)
GB (1) GB1529326A (en)
NL (1) NL184778C (en)
SE (1) SE431325B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058209B2 (en) 1978-12-01 1985-12-19 エーザイ株式会社 β,γ-dihydropolyprenyl alcohol and antihypertensive agents consisting of it
JPH0541417U (en) * 1991-03-20 1993-06-08 ハクバ写真産業株式会社 Handle of the trunk case

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH376898A (en) * 1958-08-07 1964-04-30 Hoffmann La Roche Process for the preparation of 2,3-dimethoxy-5-methyl-benzohydroquinones- (1,4) or benzoquinones- (1,4) substituted in the 6-position

Also Published As

Publication number Publication date
CH613682A5 (en) 1979-10-15
NL184778C (en) 1989-11-01
DE2552365C2 (en) 1985-10-24
SE431325B (en) 1984-01-30
DE2552365A1 (en) 1976-05-26
FR2291980B1 (en) 1978-05-12
JPS5826327B2 (en) 1983-06-02
SE7513127L (en) 1976-05-24
NL7513705A (en) 1976-05-25
FR2291980A1 (en) 1976-06-18
JPS5163139A (en) 1976-06-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee