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Organocatalytic Asymmetric Michael Addition of Ketones to alpha,beta-Unsaturated Nitro Compoundsopen access
- Authors
- Shim, Jae Ho; Nam, Si Hun; Kim, Byeong-Seon; Ha, Deok-Chan
- Issue Date
- Jun-2020
- Publisher
- MDPI
- Keywords
- organocatalyst; enantioselectivity; yield; thiourea catalyst; asymmetric
- Citation
- CATALYSTS, v.10, no.6
- Indexed
- SCIE
SCOPUS
- Journal Title
- CATALYSTS
- Volume
- 10
- Number
- 6
- ISSN
- 2073-4344
- Abstract
- An organic catalyst "(R,R)-1,2-diphenylethylenediamine(DPEN) derivative'' was devel-oped as a chiral bifunctional organocatalyst and applied for asymmetric Michael additions of aromatic ketones totrans-beta-nitroalkene compounds under neutral conditions. The isopropyl-subs-tituted thiourea catalyst in neutral condition provides high chemical yield and enantioselectivities (ee) (up to 96% yield, 98% ee).
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