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
GB2160/43A
Inventor
Francis Edward Cislak
William Raleigh Wheeler
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.)
Reilly Tar and Chemical Corp
Original Assignee
Reilly Tar and Chemical Corp
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 Reilly Tar and Chemical CorpfiledCriticalReilly Tar and Chemical Corp
Publication of GB561722ApublicationCriticalpatent/GB561722A/en
3-Picoline is purified from 4-picoline and/or 2,6-lutidine by heating with an organic acid anhydride or halide (chloride, bromide, or iodide), whereby the impurities are converted to complex non-volatile products and the 3-picoline may be separated as by distillation, or by chemical means. A condensation catalyst, such as zinc chloride, may be added. Phthalic anhydride, stearic anhydride, butyric anhydride, acetic anhydride, acetyl chloride, bromide, or iodide, benzoyl chloride or p-toluenesulphonyl chloride may be used.
GB2160/43A1942-03-251943-02-09Purification of 3-picoline
ExpiredGB561722A
(en)