GB752420A - Novel naphthalene compounds and a process for the manufacture thereof - Google Patents

Novel naphthalene compounds and a process for the manufacture thereof

Info

Publication number
GB752420A
GB752420A GB23434/54A GB2343454A GB752420A GB 752420 A GB752420 A GB 752420A GB 23434/54 A GB23434/54 A GB 23434/54A GB 2343454 A GB2343454 A GB 2343454A GB 752420 A GB752420 A GB 752420A
Authority
GB
United Kingdom
Prior art keywords
naphthohydroquinone
ether
methyl
acid
phytyl
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
GB23434/54A
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.)
Roche Products Ltd
Original Assignee
Roche Products 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 Roche Products Ltd filed Critical Roche Products Ltd
Publication of GB752420A publication Critical patent/GB752420A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C07C69/78—Benzoic acid esters
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/28—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/293—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/017—Esters of hydroxy compounds having the esterified hydroxy group bound to a carbon atom of a six-membered aromatic ring

Abstract

The invention comprises 2-methyl-3-phytyl 1,4-naphthohydroquinone monoesters and the preparation thereof by condensing a 2-methyl-1,4 - naphthohydroquinone monoester with phytol or isophytol or with an ester or ether of either substance in the presence of an acidic condensing agent, e.g. zinc chloride, sulphuric acid, trichloroacetic acid, acetic acid, oxalic acid, formic acid, boron trifluoride and its complex with ether. As solvent for the reactants there may be used diisopropyl ether, diethyl ether, dibutyl ether dioxane, formic acid or acetic acid. Examples disclose the production of the monobenzoate and monoacetate of 2 - methyl - 3 - phytyl - 1,4 - naphthohydroquinone. 2 - Methyl - 1,4 - naphthohydroquinone monobenzoate is obtained by reacting 2 - methyl - 1,4 - naphthohydroquinone with benzyl chloride and pyridine in ether.
GB23434/54A 1953-08-12 1954-08-12 Novel naphthalene compounds and a process for the manufacture thereof Expired GB752420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH752420X 1953-08-12

Publications (1)

Publication Number Publication Date
GB752420A true GB752420A (en) 1956-07-11

Family

ID=4534002

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23434/54A Expired GB752420A (en) 1953-08-12 1954-08-12 Novel naphthalene compounds and a process for the manufacture thereof

Country Status (1)

Country Link
GB (1) GB752420A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3118914A (en) * 1958-08-07 1964-01-21 Hoffmann La Roche Isoprenoid substituted quinones of the coenzyme q type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3118914A (en) * 1958-08-07 1964-01-21 Hoffmann La Roche Isoprenoid substituted quinones of the coenzyme q type

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