Umpolung Strategy for Synthesis of β-Ketonitriles through Hypervalent Iodine-Promoted Cyanation of Silyl Enol Ethers

被引:64
作者
Shen, Hang [1 ]
Li, Jiaqiang [1 ]
Liu, Qing [1 ]
Pan, Jing [1 ]
Huang, Ruofeng [1 ]
Xiong, Yan [1 ,2 ]
机构
[1] Chongqing Univ, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China
[2] Nankai Univ, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China
基金
中国国家自然科学基金;
关键词
BORON-TRIFLUORIDE ETHERATE; LEWIS-ACID CONDITIONS; ENANTIOSELECTIVE CYANOSILYLATION; PHARMACOLOGICAL EVALUATION; CONVENIENT SYNTHESIS; ALDEHYDES; KETONES; OXIDATION; CHEMISTRY; CYANO;
D O I
10.1021/acs.joc.5b01102
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An efficient method to synthesize beta-ketonitriles from silyl enol ethers by an umploung hypervalent iodine(III)-CN species generated in situ from PhIO/BF3 center dot Et2O/TMSCN has been developed for the first time. This method can be applied to structurally diverse aromatic and aliphatic substrates and further extended to preparation of bioactive compounds like 5-aminopyrazole and 5-aminoisoxazole.
引用
收藏
页码:7212 / 7218
页数:7
相关论文
共 75 条
[1]  
Akai S, 1996, HETEROCYCLES, V42, P47
[2]   Electrophilic α-cyanation of 1,3-dicarbonyl compounds [J].
Akula, Ramulu ;
Xiong, Yan ;
Ibrahim, Hasim .
RSC ADVANCES, 2013, 3 (27) :10731-10735
[3]   Synthesis of 5-Substituted 3-Amino-1H-Pyrazole-4-Carbonitriles as Precursors for Microwave Assisted Regiospecific Syntheses of Pyrazolo[1,5-a]Pyrimidines [J].
Al-Qalaf, Fawzia ;
Mandani, Faisal ;
Abdelkhalik, Mervat Mohammed ;
Bassam, Abeer Abdulrahman .
MOLECULES, 2009, 14 (01) :78-88
[4]   A Convenient Synthesis of Benzonitriles via Electrophilic Cyanation with N-Cyanobenzimidazole [J].
Anbarasan, Pazhamalai ;
Neumann, Helfried ;
Beller, Matthias .
CHEMISTRY-A EUROPEAN JOURNAL, 2010, 16 (16) :4725-4728
[5]   Allosteric Modulators of the Adenosine A1 Receptor: Synthesis and Pharmacological Evaluation of 4-Substituted 2-Amino-3-benzoylthiophenes [J].
Aurelio, Luigi ;
Valant, Celine ;
Flynn, Bernard L. ;
Sexton, Patrick M. ;
Christopoulos, Arthur ;
Scammells, Peter J. .
JOURNAL OF MEDICINAL CHEMISTRY, 2009, 52 (14) :4543-4547
[6]   Discovery of mixed type thymidine phosphorylase inhibitors endowed with antiangiogenic properties: Synthesis, pharmacological evaluation and molecular docking study of 2-thioxo-pyrazolo[1,5-a][1,3,5]triazin-4-ones. Part II [J].
Bera, Hriday ;
Ojha, Probir Kumar ;
Tan, Bee Jen ;
Sun, Lingyi ;
Dolzhenko, Anton V. ;
Chui, Wai-Keung ;
Chiu, Gigi Ngar Chee .
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY, 2014, 78 :294-303
[7]  
BROWNBRIDGE P, 1983, SYNTHESIS-STUTTGART, P85
[8]  
BROWNBRIDGE P, 1983, SYNTHESIS-STUTTGART, P1
[9]   A NEW PRACTICAL SYNTHESIS OF SILYL ENOL ETHERS .1. FROM SIMPLE ALDEHYDES AND KETONES [J].
CAZEAU, P ;
DUBOUDIN, F ;
MOULINES, F ;
BABOT, O ;
DUNOGUES, J .
TETRAHEDRON, 1987, 43 (09) :2075-2088
[10]   Facile Preparation of α-Aryl Nitriles by Direct Cyanation of Alcohols with TMSCN Under the Catalysis of InX3 [J].
Chen, Gang ;
Wang, Zheng ;
Wu, Jiang ;
Ding, Kuiling .
ORGANIC LETTERS, 2008, 10 (20) :4573-4576