Decatungstate-Catalyzed Hydrosilylation of α-Trifluoromethylalkenes for Construction of α-Trifluoromethyl-β-silanes DOI
M. Xiao,

Yidong Lang,

Ziqiang Cheng

et al.

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

The hydrosilylation of alkenes is a pivotal transformation for the synthesis organosilanes; however, fluorine-containing limited due to facile β-fluoride elimination. Herein, by employing direct hydrogen atom transfer (HAT) catalyst, tetrabutylammonium decatungstate (TBADT), and using disulfide as co-catalyst, we have successfully developed mild photocatalytic α-trifluoromethylalkenes α-trifluoromethyl-β-silanes. Our method features conditions, good regioselectivity, compatibility. elimination was fully inhibited. A radical mechanism proposed based on preliminary results.

Language: Английский

Photoredox/Nickel Dual-Catalytic Asymmetric Silylarylation of Alkenes DOI

Qiyang Yuan,

Zhengrong Deng,

Yi Wan

et al.

Organic Letters, Journal Year: 2025, Volume and Issue: 27(2), P. 680 - 685

Published: Jan. 6, 2025

The efficient construction of chiral aryl-containing organosilicon frameworks via catalytic enantioselective three-component silylarylation alkenes remains a great challenge. Herein, photoredox/nickel dual-catalytic asymmetric protocol has been disclosed by using biimidazoline (BiIM) as the ligand, silylboranes silyl radical precursors, aryl bromides coupling partners, and morpholine promoter. Remarkably, reaction features mild green conditions, high efficiency, excellent enantioselectivity, enabling facile synthesis valuable tropic acid sila-isoflavanone structures.

Language: Английский

Citations

2
Decatungstate-Catalyzed Hydrosilylation of α-Trifluoromethylalkenes for Construction of α-Trifluoromethyl-β-silanes DOI
M. Xiao,

Yidong Lang,

Ziqiang Cheng

et al.

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

The hydrosilylation of alkenes is a pivotal transformation for the synthesis organosilanes; however, fluorine-containing limited due to facile β-fluoride elimination. Herein, by employing direct hydrogen atom transfer (HAT) catalyst, tetrabutylammonium decatungstate (TBADT), and using disulfide as co-catalyst, we have successfully developed mild photocatalytic α-trifluoromethylalkenes α-trifluoromethyl-β-silanes. Our method features conditions, good regioselectivity, compatibility. elimination was fully inhibited. A radical mechanism proposed based on preliminary results.

Language: Английский

Citations

0