|
1
|
Chen X, Li Z. Regioselective mono-aza-Michael additions of divinyl ketones with 3-(arylimino)indolin-2-ones: Synthesis of N-enone-functionalized 3-(arylimino)indolin-2-ones. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820920179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Selective mono-aza-Michael additions of divinyl ketones with 3-(arylimino)indolin-2-ones in the presence of cesium carbonate are described. N-Enone-functionalized 3-(arylimino)indolin-2-ones were efficiently synthesized in satisfactory yield. The salient features of this protocol are high regioselectivity, high yield, and mild conditions.
Collapse
Affiliation(s)
- Xiao Chen
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, P.R. China
| | - Zheng Li
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, P.R. China
| |
Collapse
|
|
2
|
Li Z, Song W. Regiospecific 1,4-Michael Addition of Phenylacetonitrile to 1,5-Diarylpenta-2,4-Dien-1-Ones. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15314820245660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The regiospecific 1,4-Michael addition of phenylacetonitrile to (2E,4E)-1,5-diarylpenta-2,4-dien-1-ones produced 12 novel (E)-3-(2-oxo-2-arylethyl)-2,5-diarylpent-4-enenitriles in 77-88% yield. The advantages of the method are broad substrate scope, mild conditions, good to high yields and high selectivity. The method can also be extended to a gram scale.
Collapse
Affiliation(s)
- Zheng Li
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P.R. China
| | - Wenli Song
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P.R. China
| |
Collapse
|