![(1S)-1,5-Anhydro-2-O-alpha-L-arabinopyranosyl-1-[5-hydroxy-7-({6-O-[3-(4-hydroxy-3-methoxyphenyl)propanoyl]-beta-D-glucopyranosyl}oxy)-2-(4-hydroxyphenyl)-4-oxo-4H-chromen-6-yl]-D-glucitol structure](https://static.chemtradehub.com/structs/225/2252345-81-4-bcff.webp "(1S)-1,5-Anhydro-2-O-alpha-L-arabinopyranosyl-1-[5-hydroxy-7-({6-O-[3-(4-hydroxy-3-methoxyphenyl)propanoyl]-beta-D-glucopyranosyl}oxy)-2-(4-hydroxyphenyl)-4-oxo-4H-chromen-6-yl]-D-glucitol structure")
Regioselective indole C2-alkylation using β-CF3-substituted enones under redox neutral Rh(iii) catalysis
Literature Information
Publication Date
2018-09-27
DOI
10.1039/C8QO00932E
Impact Factor
5.281
Authors
Bharatkumar Chaudhary, Monika Diwaker, Satyasheel Sharma
View Original
Abstract
Rhodium(III) catalyzed C–H alkylation at the C2-position of indole with β-trifluoromethyl-α,β-unsaturated ketones is described. The reactions proceed efficiently with low catalyst loading and a broad range of substrates with excellent functional group compatibility. The scale-up reaction was successfully achieved with 0.5 mol% of the Rh catalyst without significant decrease in the yield. This protocol provides direct access to pharmaceutically important indole derivatives containing a stereogenic carbon center bearing a CF3 functionality at the C2-position.
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Source Journal
Organic Chemistry Frontiers
CiteScore:
7.8
Self-citation Rate:
8.7%
Articles per Year:
724
Organic Chemistry Frontiers publishes high-quality research from across organic chemistry. Emphases are placed on studies that make significant contributions to the field of organic chemistry by reporting either new or significantly improved protocols or methodologies. Topics include, but are not limited to the following: Organic synthesis Development of synthetic methodologies Catalysis Natural products Functional organic materials Supramolecular and macromolecular chemistry Physical and computational organic chemistry
Recommended Compounds
![3,7-Di(1,1':3',1''-terphenyl-5'-yl)-10,11,12,13-tetrahydrodiindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-ol 5-oxide structure](https://static.chemtradehub.com/structs/135/1352810-38-8-3f10.webp "3,7-Di(1,1':3',1''-terphenyl-5'-yl)-10,11,12,13-tetrahydrodiindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-ol 5-oxide structure")
3,7-Di(1,1':3',1''-terphenyl-5'-yl)-10,11,12,13-tetrahydrodiindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin-5-ol 5-oxide
CAS Number:
1352810-38-8
Molecular Formula:
C53H39O4P
(1-(2-(Dimethylamino)ethyl)-1H-pyrazol-4-yl)boronic acid
CAS Number:
1086063-73-1
Molecular Formula:
C7H14BN3O2
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