| 摘要 |
<p>1351530 Amides R J REYNOLDS TOBACCO CO 7 June 1971 [24 Aug 1970] 19281/71 Addition to 1133013 Heading C2C Amides are prepared by passing at a controlled rate an aqueous solution or aqueous emulsion of a nitrile through a bed of granular or pelleted manganese dioxide having a particle size larger than 40 mesh (U.S.). Examples prepare amides from aceto-, propio-, n-butyro-, isobutyro-, succino-, adipo, benzo-, and acrylonitrile; 3-cyanopyridine and acetone cyanohydrin.</p> |
