Generation of Iminyl Copper Species from α-Azido Carbonyl Compounds and Their Catalytic C-C Bond Cleavage under an Oxygen Atmosphere

被引:103
作者
Chiba, Shunsuke [1 ]
Zhang, Line [1 ]
Ang, Gim Yean [1 ]
Hui, Benjamin Wei-Qiang [1 ]
机构
[1] Nanyang Technol Univ, Div Chem & Biol Chem, Sch Phys & Math Sci, Singapore 637371, Singapore
关键词
PRIMARY AMIDES; VINYL AZIDES; NITRILES; ACIDS; TRANSFORMATION; DEHYDRATION; DERIVATIVES; CONVERSION; ALDOXIMES; CYANATION;
D O I
10.1021/ol100522z
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A copper-catalyzed reaction of a-azidocarbonyl compounds under an oxygen atmosphere is reported where nitriles are formed via C C bond cleavage of a transient Iminyl copper intermediate. The transformation is carried out by a sequence of denitrogenative formation of iminyl copper species from alpha-azidocarbonyl compounds and their C C bond cleavage, where molecular oxygen (1 atm) is a prerequisite to achieve the catalytic process and one of the oxygen atoms of O-2 was found to be incorporated Into the beta-carbon fragment as a carboxylic acid.
引用
收藏
页码:2052 / 2055
页数:4
相关论文
共 38 条
[1]  
Barz M, 1998, ANGEW CHEM INT EDIT, V37, P2262, DOI 10.1002/(SICI)1521-3773(19980904)37:16<2262::AID-ANIE2262>3.0.CO
[2]  
2-X
[3]   Iminyl radicals from α-azido o-iodoanilides via 1,5-H transfer reactions of aryl radicals:: New transformation of α-azido acids to decarboxylated nitriles [J].
Bencivenni, Giorgio ;
Lanza, Tommaso ;
Leardini, Rino ;
Minozzi, Matteo ;
Nanni, Daniele ;
Spagnolo, Piero ;
Zanardi, Giuseppe .
JOURNAL OF ORGANIC CHEMISTRY, 2008, 73 (12) :4721-4724
[4]   C-H functionalization/C-N bond formation: Copper-catalyzed synthesis of benzimidazoles from amidines [J].
Brasche, Gordon ;
Buchwald, Stephen L. .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (10) :1932-1934
[5]   A Pd(II)-Catalyzed Ring-Expansion Reaction of Cyclic 2-Azidoalcohol Derivatives: Synthesis of Azaheterocycles [J].
Chiba, Shunsuke ;
Xu, Yan-Jun ;
Wang, Yi-Feng .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (36) :12886-+
[6]   [RuCl2(p-cymene)]2 on carbon:: An efficient, selective, reusable, and environmentally versatile heterogeneous catalyst [J].
Choi, E ;
Lee, C ;
Na, Y ;
Chang, S .
ORGANIC LETTERS, 2002, 4 (14) :2369-2371
[7]   A Direct Preparation of N-Unsubstituted Pyrrole-2,5-dicarboxylates from 2-Azidocarboxylic Esters [J].
Ciez, Dariusz .
ORGANIC LETTERS, 2009, 11 (19) :4282-4285
[8]  
Cornell C.N., 2006, ACTIVATION SMALL MOL, P159
[9]   Palladium-Catalyzed Annulation of Acyloximes with Arynes (or Alkynes) Synthesis of Phenanthridines and Isoquinolines [J].
Gerfaud, Thibaud ;
Neuville, Luc ;
Zhu, Jieping .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (03) :572-577
[10]   Radical fragmentation of β-hydroxy azides.: Synthesis of chiral nitriles [J].
Hernández, R ;
León, EI ;
Moreno, P ;
Suárez, E .
JOURNAL OF ORGANIC CHEMISTRY, 1997, 62 (26) :8974-8975