Rhodium-Catalyzed Dynamic Kinetic Asymmetric Transformations of Racemic Tertiary Allylic Trichloroacetimidates with Anilines

被引:96
作者
Arnold, Jeffrey S. [1 ]
Nguyen, Hien M. [1 ]
机构
[1] Univ Iowa, Dept Chem, Iowa City, IA 52242 USA
基金
美国国家科学基金会;
关键词
CHIRAL DIENE LIGANDS; ENANTIOSELECTIVE ALLYLATION; QUATERNARY STEREOCENTERS; AMINATION; AMINES; ALKYLATION; ARYLATION; REARRANGEMENT; 1,2-ADDITION; RESOLUTION;
D O I
10.1021/ja302223p
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The rhodium-catalyzed regio- and enantioselective amination of racemic tertiary allylic trichloroacetimidates with a variety of aniline nucleophiles is a direct and efficient route to chiral alpha,alpha-disubstituted allylic N-arylamines. We describe the first dynamic kinetic asymmetric transformations of racemic tertiary allylic electrophiles with anilines utilizing a chiral diene-ligated rhodium catalyst. The method allows for the formation of alpha,alpha-disubstituted allylic N-arylamines in moderate to good yields with good to excellent levels of regic- and enantioselectivity.
引用
收藏
页码:8380 / 8383
页数:4
相关论文
共 60 条
[1]   Synthesis of α,α-Disubstituted Aryl Amines by Rhodium-Catalyzed Amination of Tertiary Allylic Trichloroacetimidates [J].
Arnold, Jeffrey S. ;
Cizio, Gregory T. ;
Nguyen, Hien M. .
ORGANIC LETTERS, 2011, 13 (20) :5576-5579
[2]   Rhodium-Catalyzed Regioselective Amination of Secondary Allylic Trichloroacetimidates with Unactivated Aromatic Amines [J].
Arnold, Jeffrey S. ;
Stone, Robert F. ;
Nguyen, Hien M. .
ORGANIC LETTERS, 2010, 12 (20) :4580-4583
[3]   α,β-unsaturated β-silyl imide substrates for catalytic, enantioselective conjugate additions:: A total synthesis of (+)-lactacystin and the discovery of a new proteasome inhibitor [J].
Balskus, Emily P. ;
Jacobsen, Eric N. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (21) :6810-6812
[4]  
Bartels B, 2002, EUR J INORG CHEM, P2569
[5]  
Bodner G.M., 1970, Journal of the Chemical Society D: Chemical Communications, P1530
[6]   The first enantioselective organocatalytic Mukaiyama- Michael reaction:: A direct method for the synthesis of enantioenriched γ-butenolide architecture [J].
Brown, SP ;
Goodwin, NC ;
MacMillan, DWC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (05) :1192-1194
[7]   Catalytic Asymmetric Synthesis of Chiral Allylic Esters [J].
Cannon, Jeffrey S. ;
Kirsch, Stefan F. ;
Overman, Larry E. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (43) :15185-15191
[8]   Tandem β-Alkylation-α-Arylation of Amines by Carbolithiation and Rearrangement of N-Carbamoyl Enamines (Vinyl Ureas) [J].
Clayden, Jonathan ;
Donnard, Morgan ;
Lefranc, Julien ;
Minassi, Alberto ;
Tetlow, Daniel J. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (19) :6624-+
[9]   Asymmetric synthesis of α,α-dibranched amines by the trimethylaluminum-mediated 1,2-addition of organolithiums to tert-butanesulfinyl ketimines [J].
Cogan, DA ;
Ellman, JA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (01) :268-269
[10]   The catalytic asymmetric strecker reaction: Ketimines continue to join the fold [J].
Connon, Stephen J. .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (07) :1176-1178