DE197345C - - Google Patents

Info

Publication number
DE197345C
DE197345C DE1906197345D DE197345DA DE197345C DE 197345 C DE197345 C DE 197345C DE 1906197345 D DE1906197345 D DE 1906197345D DE 197345D A DE197345D A DE 197345DA DE 197345 C DE197345 C DE 197345C
Authority
DE
Germany
Prior art keywords
methylene
acid
citric acid
trioxymethylene
chloroacetate
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 - Lifetime
Application number
DE1906197345D
Other languages
German (de)
Filing date
Publication of DE197345C publication Critical patent/DE197345C/de
Application filed filed Critical
Priority to AT35845D priority Critical patent/AT35845B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
    • C07D317/32—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D317/34—Oxygen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

EEnLIN. GEDRUCKT IN DER REICHSDRUCKEREi.EEnLIN. PRINTED IN THE REICHSDRUCKEREi.

Claims (1)

Patent-Anspruch :Patent claim: Abänderung des durch Patent 193767 geschützten Verfahrens zur Darstellung von Methylenzitronensäure, dadurch gekennzeichnet, daß man an Stelle von Zitronensäure deren Salze mit Methylensulfat, Methylendiacetat, Methylenchloracetat oder Substanzen, aus denen diese Methylenierungsmittel entstehen, oder mit Trioxymethylen in Gegenwart von Säureanhydriden oder Säurechloriden des Schwefels und Phosphors behandelt.Modification of the method of representation protected by patent 193767 of methyl citric acid, characterized in that instead of citric acid their salts with methylene sulfate, methylene diacetate, methylene chloroacetate or substances from which these Methylenating agents are formed, or with trioxymethylene in the presence of acid anhydrides or acid chlorides of sulfur and phosphorus.
DE1906197345D 1906-04-30 1906-04-30 Expired - Lifetime DE197345C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT35845D AT35845B (en) 1906-04-30 1908-04-15 Process for the preparation of methylencitric acid.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE197345T

Publications (1)

Publication Number Publication Date
DE197345C true DE197345C (en)

Family

ID=32997306

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1906193767D Expired - Lifetime DE193767C (en) 1906-02-17 1906-02-17
DE1906197345D Expired - Lifetime DE197345C (en) 1906-04-30 1906-04-30

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1906193767D Expired - Lifetime DE193767C (en) 1906-02-17 1906-02-17

Country Status (1)

Country Link
DE (2) DE193767C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPP784998A0 (en) * 1998-12-21 1999-01-21 Ghadiminejad, Iraj A low molecular weigh, non-proteinaceous compound that inhibits mitogen induced cytokine production
AT500306B1 (en) 2003-08-06 2008-09-15 Atomic Austria Gmbh BRAKING DEVICE FOR A SCHI

Also Published As

Publication number Publication date
DE193767C (en)

Similar Documents

Publication Publication Date Title
DE197345C (en)
AT32827B (en) Method and device for hardening scratch teeth by quenching and releasing the teeth twice.
AT9814B (en) Method and device for the production of pant clips from celluloid u. like
DE205264C (en)
AT30590B (en) Process for the production of braided battens from elastic or fibrous material and wire.
DE365018C (en) Means for the destruction of animal pests
DE268221C (en)
FR17819E (en) Nut with stopper
DE198712C (en)
GB190616554A (en) Improvements in or relating to Apparatus for the Defence of Harbours and the like.
AT31532B (en) Device for the continuous and automatic separation of fibers from liquids.
AT41654B (en) Method of wrapping and preserving eggs at the same time.
AT31970B (en) Process for the preparation of ammonium nitrate from sodium nitrate and ammonium sulfate.
AT52649B (en) Device for cleaning steam boiler feed water.
CH51950A (en) Process for the preparation of a double urea from 1: 2: 6: 4-toluenediaminesulfonic acid and 2: 5-amidonaphthol-7-sulfonic acid
AT25704B (en) Process for the production of durable pellets from fresh plants.
AT25602B (en) Process for the preparation of dialkylbarbituric acids and their derivatives.
CH49757A (en) Method for the preparation of sulfuric anhydride by the contact method
AT27632B (en) Device for displaying and registering the maximum speed of vehicles within certain equal time periods
CH45318A (en) Improvement in the process for the preparation of nitric acid from calcium nitrate and sulfuric acid
FR383143A (en) Advanced training in antimony metallurgy
FR372293A (en) Double platform lanyard preventing harnessed horses from kicking and correcting them for this defect
CH47891A (en) Device for the simultaneous uncoupling of animals in stables
CH42451A (en) Device for fastening cross beams to masts
AT27605B (en) Process for the production of mash from plants and their waste.