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• W4312200901 abstract "Herein, an I2-catalyzed unprecedented cycloisomerization of ynamides is developed, furnishing various functionalized bis(indole) derivatives in generally good to excellent yields with wide substrate scope and excellent atom-economy. This protocol not only represents the first molecular-iodine-catalyzed tandem complex alkyne cycloisomerizations, but also constitutes the first chemoselective cycloisomerization of tryptamine-ynamides involving distinctively different C(sp3)−C(sp3) bond cleavage and rearrangement. Moreover, chiral tetrahydropyridine frameworks containing two stereocenters are obtained with moderate to excellent diastereoselectivities and excellent enantioselectivities. Meanwhile, cycloisomerization and aromatization of ynamides produce pyrrolyl indoles with high efficiency enabled by I2. Additionally, control experiments and theoretical calculations reveal that this reaction probably undergoes a tandem 5-exo-dig cyclization/rearrangement process." @default.
• W4312200901 created "2023-01-04" @default.
• W4312200901 creator A5003125298 @default.
• W4312200901 creator A5011249790 @default.
• W4312200901 creator A5022930741 @default.
• W4312200901 creator A5023229525 @default.
• W4312200901 creator A5045346048 @default.
• W4312200901 creator A5045982271 @default.
• W4312200901 creator A5056465234 @default.
• W4312200901 creator A5087306213 @default.
• W4312200901 creator A5088902667 @default.
• W4312200901 date "2023-01-16" @default.
• W4312200901 modified "2023-09-23" @default.
• W4312200901 title "I ₂ ‐Catalyzed Cycloisomerization of Ynamides: Chemoselective and Divergent Access to Indole Derivatives" @default.
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