GB628410A - A process for the manufacture of isoalloxazines - Google Patents

A process for the manufacture of isoalloxazines

Info

Publication number
GB628410A
GB628410A GB7597/47A GB759747A GB628410A GB 628410 A GB628410 A GB 628410A GB 7597/47 A GB7597/47 A GB 7597/47A GB 759747 A GB759747 A GB 759747A GB 628410 A GB628410 A GB 628410A
Authority
GB
United Kingdom
Prior art keywords
isoalloxazines
alloxantin
alloxan
alkyl
manufacture
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
GB7597/47A
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of GB628410A publication Critical patent/GB628410A/en
Expired legal-status Critical Current

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  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Isoalloxazines are obtained by condensing an ortho diamine having the general formula <FORM:0628410/IV (b)/1> or a salt thereof, e.g. the hydrochloride of 1 : 2 - dimethyl - 4 - d - ribitylamino - 5 - aminobenzene, with alloxan in the presence of an approximately equimolecular proportion of alloxantin, and wherein R is alkyl or polyhydroxyalkyl, or polyacyloxyalkyl and wherein R1 and R11 are, not necessarily identical, hydrogen or an alkyl group having not more than eight carbon atoms. The alloxantin may be produced in situ by reaction of alloxan and stannous chloride and the condensation carried out in the presence of a lower aliphatic alcohol, such as ethanol. Detached examples are given. Specification 441,692 is referred to.
GB7597/47A 1946-04-04 1947-03-19 A process for the manufacture of isoalloxazines Expired GB628410A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US628410XA 1946-04-04 1946-04-04

Publications (1)

Publication Number Publication Date
GB628410A true GB628410A (en) 1949-08-29

Family

ID=22045183

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7597/47A Expired GB628410A (en) 1946-04-04 1947-03-19 A process for the manufacture of isoalloxazines

Country Status (1)

Country Link
GB (1) GB628410A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2867614A (en) * 1955-06-02 1959-01-06 Armour & Co Analogs of riboflavin and their preparation
US3052668A (en) * 1955-10-20 1962-09-04 Noned Corp Isoalloxazine compound

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2867614A (en) * 1955-06-02 1959-01-06 Armour & Co Analogs of riboflavin and their preparation
US3052668A (en) * 1955-10-20 1962-09-04 Noned Corp Isoalloxazine compound

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