| 摘要 |
1313791 Process for 1,1<SP>1</SP>-di-(hydroxyalkyl)- 4,4<SP>1</SP>-bipyridylium salts IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [5 March 1970] 10679/70 Addition to 1277733 Heading C2C The invention comprises reacting an N- hydroxyalkyl pyridinium salt with a cyanide under basic conditions and subsequently oxidizing the resulting product, a 1,1<SP>1</SP>-di-(hydroxyalkyl) - 1,11 - dihydro - 4,4<SP>1</SP>- bipyridyl, to give the title, herbicidal salt; the pyridine nucleii may be substituted, e.g. with alkyl, and the hydroxyalkyl groups contain up to 10 carbons. |
