DE3263721D1 - Purification of caffeine - Google Patents

Purification of caffeine

Info

Publication number
DE3263721D1
DE3263721D1 DE8282102211T DE3263721T DE3263721D1 DE 3263721 D1 DE3263721 D1 DE 3263721D1 DE 8282102211 T DE8282102211 T DE 8282102211T DE 3263721 T DE3263721 T DE 3263721T DE 3263721 D1 DE3263721 D1 DE 3263721D1
Authority
DE
Germany
Prior art keywords
caffeine
purification
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
DE8282102211T
Other languages
English (en)
Inventor
Pierre Hirsbrunner
Blaise Pavillard
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
Application granted granted Critical
Publication of DE3263721D1 publication Critical patent/DE3263721D1/de
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)
DE8282102211T 1981-04-14 1982-03-18 Purification of caffeine Expired DE3263721D1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE3263721D1 true DE3263721D1 (en) 1985-06-27

Family

ID=22962929

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282102211T Expired DE3263721D1 (en) 1981-04-14 1982-03-18 Purification of caffeine

Country Status (9)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019063465A1 (en) * 2017-09-29 2019-04-04 Nestec S.A. PROCESS FOR PRODUCING CAFFEINE
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
PT74740A (en) 1982-05-01
ES511377A0 (es) 1983-02-16
MX7061E (es) 1987-04-10
PT74740B (en) 1983-11-14
FI69466B (fi) 1985-10-31
JPS57179184A (en) 1982-11-04
EP0062776A1 (de) 1982-10-20
FI69466C (fi) 1986-02-10
PH18582A (en) 1985-08-12
FI820971L (fi) 1982-10-15
JPS6318948B2 (de) 1988-04-20
PL235735A1 (de) 1982-11-22
ES8304131A1 (es) 1983-02-16
PL135880B1 (en) 1985-12-31
EP0062776B1 (de) 1985-05-22

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee