Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1255516 | Chinese Chemical Letters | 2009 | 4 Pages |
Abstract
Fischer indole cyclization of phenylhydrazine and various ketones using carboxyl-functionalized ionic liquid, 1-carboxymethyl-3-methylimidazolium tetrafluoroborate (abbreviated as [cmmim][BF4]) as catalyst was successfully performed. The yields of the target compounds were 80–92%, the purities were 96–98%. The catalyst could be recovered and reused for at least six times without significant loss in activity.
Related Topics
Physical Sciences and Engineering
Chemistry
Chemistry (General)
Authors
Feng Ping Yi, Hai Yang Sun, Xian Hua Pan, Yuan Xu, Ji Zong Li,