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
GB38183/57A
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.)
Pfizer Inc
Original Assignee
Pfizer Inc
Charles Pfizer and Co Inc
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 Pfizer Inc, Charles Pfizer and Co IncfiledCriticalPfizer Inc
Publication of GB839583ApublicationCriticalpatent/GB839583A/en
Compounds of the general formula <FORM:0839583/IV (b)/1> (wherein R is a hydrogen atom or a lower alkyl group with one to five carbon atoms) are made by reacting compounds of the general formula <FORM:0839583/IV (b)/2> with up to 4.5 mols. of sodium borohydride per mol. of compound, in the presence of about 0.1 to 3 mols. of aluminium chloride per mol. of compound, in a solvent consisting of a hydrocarbon glycol or polyglycol fully etherified by a lower alkanol, to obtain a boron complex which is then heated with a mineral acid.
GB38183/57A1956-12-311957-12-09Process for preparing a pyridoxine
ExpiredGB839583A
(en)