DE2552365C2 - Verfahren zur Herstellung von in 6-Stellung substituierten 2,3-Dimethoxy-5-methyl-1,4-benzochinonen - Google Patents

Verfahren zur Herstellung von in 6-Stellung substituierten 2,3-Dimethoxy-5-methyl-1,4-benzochinonen

Info

Publication number
DE2552365C2
DE2552365C2 DE2552365A DE2552365A DE2552365C2 DE 2552365 C2 DE2552365 C2 DE 2552365C2 DE 2552365 A DE2552365 A DE 2552365A DE 2552365 A DE2552365 A DE 2552365A DE 2552365 C2 DE2552365 C2 DE 2552365C2
Authority
DE
Germany
Prior art keywords
dimethoxy
methyl
benzohydroquinone
preparation
boric acid
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
DE2552365A
Other languages
German (de)
English (en)
Other versions
DE2552365A1 (de
Inventor
Kimio Kashiwa Chiba Hamamura
Yuichi Tokio/Tokyo Inai
Shizumasa Kijima
Norio Kawasaki Kanagawa Minami
Youji Yamagishi
Isao Tokio/Tokyo Yamatu
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
Publication of DE2552365A1 publication Critical patent/DE2552365A1/de
Priority claimed from US05/725,427 external-priority patent/US4057568A/en
Application granted granted Critical
Publication of DE2552365C2 publication Critical patent/DE2552365C2/de
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/02Boron compounds
    • C07F5/022Boron compounds without C-boron linkages
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C50/00Quinones
    • C07C50/26Quinones containing groups having oxygen atoms singly bound to carbon atoms
    • C07C50/28Quinones containing groups having oxygen atoms singly bound to carbon atoms with monocyclic quinoid structure
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/02Boron compounds
    • C07F5/05Cyclic 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)
DE2552365A 1974-11-22 1975-11-21 Verfahren zur Herstellung von in 6-Stellung substituierten 2,3-Dimethoxy-5-methyl-1,4-benzochinonen Expired DE2552365C2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP49133573A JPS5826327B2 (ja) 1974-11-22 1974-11-22 ホコウソキユウルイノ ゴウセイホウ
US05/725,427 US4057568A (en) 1974-11-22 1976-09-22 Process for synthesis of boric acid ester

Publications (2)

Publication Number Publication Date
DE2552365A1 DE2552365A1 (de) 1976-05-26
DE2552365C2 true DE2552365C2 (de) 1985-10-24

Family

ID=26467897

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2552365A Expired DE2552365C2 (de) 1974-11-22 1975-11-21 Verfahren zur Herstellung von in 6-Stellung substituierten 2,3-Dimethoxy-5-methyl-1,4-benzochinonen

Country Status (7)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058209B2 (ja) 1978-12-01 1985-12-19 エーザイ株式会社 β,γ−ジヒドロポリプレニルアルコ−ルおよびそれからなる血圧降下剤
JPH0541417U (ja) * 1991-03-20 1993-06-08 ハクバ写真産業株式会社 トランクケースの把手

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH376898A (de) * 1958-08-07 1964-04-30 Hoffmann La Roche Verfahren zur Herstellung von in 6-Stellung substituierten 2,3-Dimethoxy-5-methyl-benzohydrochinonen-(1,4) bzw.-benzochinonen-(1,4)

Also Published As

Publication number Publication date
JPS5826327B2 (ja) 1983-06-02
NL184778C (nl) 1989-11-01
FR2291980B1 (online.php) 1978-05-12
GB1529326A (en) 1978-10-18
DE2552365A1 (de) 1976-05-26
SE7513127L (sv) 1976-05-24
SE431325B (sv) 1984-01-30
NL7513705A (nl) 1976-05-25
JPS5163139A (en) 1976-06-01
FR2291980A1 (fr) 1976-06-18
CH613682A5 (en) 1979-10-15

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: C07C 50/28

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee