ES8304131A1 - "un procedimiento para la preparacion de cafeina purificada". - Google Patents

"un procedimiento para la preparacion de cafeina purificada".

Info

Publication number
ES8304131A1
ES8304131A1 ES511377A ES511377A ES8304131A1 ES 8304131 A1 ES8304131 A1 ES 8304131A1 ES 511377 A ES511377 A ES 511377A ES 511377 A ES511377 A ES 511377A ES 8304131 A1 ES8304131 A1 ES 8304131A1
Authority
ES
Spain
Prior art keywords
caffeine
purification
alkaline solution
aqueous alkaline
recrystallisation
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
ES511377A
Other languages
English (en)
Other versions
ES511377A0 (es
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.)
Societe des Produits Nestle SA
Nestle SA
Original Assignee
Societe des Produits Nestle SA
Nestle SA
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 Societe des Produits Nestle SA, Nestle SA filed Critical Societe des Produits Nestle SA
Publication of ES511377A0 publication Critical patent/ES511377A0/es
Publication of ES8304131A1 publication Critical patent/ES8304131A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D473/00—Heterocyclic compounds containing purine ring systems
    • C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
    • C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
    • C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
    • C07D473/12—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3 with methyl radicals in positions 1, 3, and 7, e.g. caffeine

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

PROCEDIMIENTO PARA LA PURIFICACION DE CAFEINA. SE RECRISTALIZA CAFEINA DE UNA SOLUCION ALCALINA ACUOSA DE CAFEINA, SIENDO EL ALCALI CONTENIDO EN DICHA SOLUCION HIDROXIDO DE METAL ALCALINO, ESTANDO PRESENTE UN AGENTE REDUCTOR, PREFERIBLEMENTE POLVO DE CINC, Y ESTANDO COMPRENDIDO EL PH DE DICHA SOLUCION ACUOSA CRISTALINA ENTRE 8 Y 10. SE EXTRAE LA CAFEINA DE LA SOLUCION ALCALINO ACUOSA DE CAFEINA CON UN DISOLVENTE SUSTANCIALMENTE INMISCIBLE EN AGUA, TAL COMO UN HIDROCARBURO CLORADO Y PREFERENTEMENTE DICLOROMETANO.
ES511377A 1981-04-14 1982-04-13 "un procedimiento para la preparacion de cafeina purificada". Expired ES8304131A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25410081A 1981-04-14 1981-04-14

Publications (2)

Publication Number Publication Date
ES511377A0 ES511377A0 (es) 1983-02-16
ES8304131A1 true ES8304131A1 (es) 1983-02-16

Family

ID=22962929

Family Applications (1)

Application Number Title Priority Date Filing Date
ES511377A Expired ES8304131A1 (es) 1981-04-14 1982-04-13 "un procedimiento para la preparacion de cafeina purificada".

Country Status (9)

Country Link
EP (1) EP0062776B1 (es)
JP (1) JPS57179184A (es)
DE (1) DE3263721D1 (es)
ES (1) ES8304131A1 (es)
FI (1) FI69466C (es)
MX (1) MX7061E (es)
PH (1) PH18582A (es)
PL (1) PL135880B1 (es)
PT (1) PT74740B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3687300A1 (en) * 2017-09-29 2020-08-05 Société des Produits Nestlé S.A. Caffeine production method
CN115228134A (zh) * 2022-09-05 2022-10-25 青海大学 一种从茶叶中提取咖啡因的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH114904A (de) * 1924-05-16 1926-05-17 Kuendig Jun & Cie F Verfahren zur Herstellung von koffeinfreiem Kaffee.
US2508545A (en) * 1948-07-20 1950-05-23 Gen Foods Corp Process of recovering caffein
GB854703A (en) * 1956-04-20 1960-11-23 Hag Ag Process for removing caffeine from coffee extracts
US3321142A (en) * 1964-10-17 1967-05-23 Dresden Arzneimittel Method for the production of an abrasion-resistant discoloration-free caffeine granulate

Also Published As

Publication number Publication date
JPS57179184A (en) 1982-11-04
JPS6318948B2 (es) 1988-04-20
FI69466B (fi) 1985-10-31
PH18582A (en) 1985-08-12
FI69466C (fi) 1986-02-10
PT74740A (en) 1982-05-01
ES511377A0 (es) 1983-02-16
PL135880B1 (en) 1985-12-31
EP0062776A1 (en) 1982-10-20
PL235735A1 (es) 1982-11-22
MX7061E (es) 1987-04-10
PT74740B (en) 1983-11-14
DE3263721D1 (en) 1985-06-27
EP0062776B1 (en) 1985-05-22
FI820971L (fi) 1982-10-15

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