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- W3118773986 endingPage "7417" @default.
- W3118773986 startingPage "7412" @default.
- W3118773986 abstract "The extensively developed ene-type enantioselective cycloisomerization of classical 1,6- and 1,7-enynes provides an efficient approach to chiral cyclic 1,4-dienes. In contrast, catalytic asymmetric heteroarenyne (heteroarene-alkyne) cycloisomerization involving dearomative transformation of endocyclic aromatic C=C bonds remains unknown. Herein, we communicate a PdH-catalyzed enantioselective heteroarenyne cycloisomerization reaction of alkyne-tethered indole substrates (formal 1,5- and 1,6-enynes). Based on this strategy, a variety of structurally diverse chiral spiro- and fused- indoline derivatives bearing quaternary stereocenters and exocyclic C=C bonds are afforded in moderate to excellent yields and excellent enantioselectivities (up to 98% ee). The classical ene-type enantioselective 1,5-enyne cycloisomerization of N -vinylpropiolamides is also developed to afford chiral 2-pyrrolones in good to excellent ee values." @default.
- W3118773986 created "2021-01-18" @default.
- W3118773986 creator A5014840657 @default.
- W3118773986 creator A5025894779 @default.
- W3118773986 creator A5028072152 @default.
- W3118773986 creator A5052555349 @default.
- W3118773986 creator A5056374396 @default.
- W3118773986 creator A5090134604 @default.
- W3118773986 date "2021-02-24" @default.
- W3118773986 modified "2023-10-01" @default.
- W3118773986 title "Palladium‐Catalyzed Enantioselective Heteroarenyne Cycloisomerization Reaction" @default.
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