Organic letters

Catalytic asymmetric conjugate allylation of coumarins

Y Kuang, X Liu, L Chang, M Wang, L Lin, X Feng

Index: Chang, Lu; Kuang, Yulong; Qin, Bo; Zhou, Xin; Liu, Xiaohua; Lin, Lili; Feng, Xiaoming Organic Letters, 2010 , vol. 12, # 10 p. 2214 - 2217

Full Text: HTML

Citation Number: 37

Abstract

A catalytic asymmetric conjugate allylation was successfully developed to synthesize potential pharmacologically active 4-allyl-2-oxochroman skeletons. A dual activation strategy was employed by using N, N′-dioxide-Yb (OTf) 3 to activate coumarins and using (CuOTf) 2• C7H8 to activate tetraallyltin via transmetalation, respectively. Good yields and enantioselectivities were obtained under mild conditions.

Related Articles:

Pentamethylcyclopentadienyl ruthenium: an efficient catalyst for the redox isomerization of functionalized allylic alcohols into carbonyl compounds

[Bouziane, Asmae; Carboni, Bertrand; Bruneau, Christian; Carreaux, Francois; Renaud, Jean-Luc Tetrahedron, 2008 , vol. 64, # 51 p. 11745 - 11750]

Synthesis of a-Alkylated Ketones via Tandem Acceptorless Dehydrogenation/a-Alkylation from Secondary and Primary Alcohols Catalyzed by Metal–Ligand …

[Jean, Mickael; Renaulty, Jacques; Uriac, Philippe; Capet, Marc; Van De Weghe, Pierre Organic Letters, 2007 , vol. 9, # 18 p. 3623 - 3625]

DMF as Carbon Source: Rh-Catalyzed α-Methylation of Ketones

[Li, Yang; Xue, Dong; Lu, Wei; Wang, Chao; Liu, Zhao-Tie; Xiao, Jianliang Organic Letters, 2014 , vol. 16, # 1 p. 66 - 69]

Synthesis of a-Alkylated Ketones via Tandem Acceptorless Dehydrogenation/a-Alkylation from Secondary and Primary Alcohols Catalyzed by Metal–Ligand …

[Jean, Mickael; Renaulty, Jacques; Uriac, Philippe; Capet, Marc; Van De Weghe, Pierre Organic Letters, 2007 , vol. 9, # 18 p. 3623 - 3625]

低温センタ?恧蚶?用した論文(2011)

[Ueno, Satoshi; Usui, Kazumi; Kuwano, Ryoichi Synlett, 2011 , # 9 p. 1303 - 1307]

More Articles...