One-Pot Relay Gold(I) and Brionsted Acid Catalysis: Cyclopenta[b]annulation of Indoles via Hydroamination/Nazarov-Type Cyclization Cascade of Enynols

被引:46
作者
Dhiman, Seema [1 ]
Ramasastry, S. S. V. [1 ]
机构
[1] Indian Inst Sci Educ & Res Mohali, Dept Chem Sci, Organ Synth & Catalysis Lab, Mohali 140306, Punjab, India
关键词
NAZAROV CYCLIZATION; BOND FUNCTIONALIZATION; BINARY-SYSTEM; TANDEM; SILVER; REARRANGEMENT; DERIVATIVES; KETONES; INDOLOSESQUITERPENE; CYCLOISOMERIZATIONS;
D O I
10.1021/acs.orglett.5b02632
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An expedient relay gold(I) and Bronsted acid catalyzed hydroamination/Nazarov cyclization of 1-(2-aminophenyl)pent-4-en-2-ynols for the synthesis of various polyfunctionalized cyclopenta[b]indoles is described. The synthetic utility of this method has been demonstrated by the synthesis of a few unprecedented pentacyclic indoles and indole steroidal hybrids. Further, the new methodology has been successfully applied to the enantioselective synthesis of core carbon structure of the polyveoline family of natural products.
引用
收藏
页码:5116 / 5119
页数:4
相关论文
共 76 条
[1]   Conversion of Cyclic Ketones to 2,3-Fused Pyrroles and Substituted Indoles [J].
Alford, Joshua S. ;
Spangler, Jillian E. ;
Davies, Huw M. L. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (32) :11712-11715
[2]   Electrophile-Driven Regioselective Synthesis of Functionalized Quinolines [J].
Ali, Shaukat ;
Zhu, Hai-Tao ;
Xia, Xiao-Feng ;
Ji, Ke-Gong ;
Yang, Yan-Fang ;
Song, Xian-Rong ;
Liang, Yong-Min .
ORGANIC LETTERS, 2011, 13 (10) :2598-2601
[3]  
Antinarelli Luciana Mr, 2012, Org Med Chem Lett, V2, P16, DOI 10.1186/2191-2858-2-16
[4]   Alternative synthetic methods through new developments in catalysis by gold [J].
Arcadi, Antonio .
CHEMICAL REVIEWS, 2008, 108 (08) :3266-3325
[5]   An Enzymatic Cyclopentyl[b]indole Formation Involved in Scytonemin Biosynthesis [J].
Balskus, Emily P. ;
Walsh, Christopher T. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (41) :14648-+
[6]   Gold-catalyzed decorations of arenes and heteroarenes with C-C multiple bonds [J].
Bandini, Marco .
CHEMICAL SOCIETY REVIEWS, 2011, 40 (03) :1358-1367
[7]   ALKALOIDS OF ANNONACEAE .18. ALKALOIDS FROM TRUNK-BARKS OF "POLYALTHIA-SUAVEOLENS-ENGL-ET-DIELS [J].
CAVE, A ;
GUINAUDEAU, H ;
LEBOEUF, M ;
RAMAHATRA, A ;
RAZAFINDRAZAKA, J .
PLANTA MEDICA, 1978, 33 (03) :243-250
[8]   Electronic Effect Directed Au(I)-Catalyzed Cyclic C2-H Bond Functionalization of 3-Allenylindoles [J].
Chen, Bo ;
Fan, Wu ;
Chai, Guobi ;
Ma, Shengming .
ORGANIC LETTERS, 2012, 14 (14) :3616-3619
[9]   Synthesis of polysubstituted cyclopenta[b] indoles via relay gold(I)/Bronsted acid catalysis [J].
Dhiman, Seema ;
Ramasastry, S. S. V. .
CHEMICAL COMMUNICATIONS, 2015, 51 (03) :557-560
[10]   Gold(I)-Catalyzed Activation of Alkynes for the Construction of Molecular Complexity [J].
Dorel, Ruth ;
Echavarren, Antonio M. .
CHEMICAL REVIEWS, 2015, 115 (17) :9028-9072