REFERENCES
- Sundberg , R. J. The Chemistry of Indoles ; Academic Press : New York , 1970 .
- (a) Kalir , A. ; Szara , S. Synthesis and pharmacological activity of fluorinated tryptamine derivatives . J. Med. Chem. 1963 , 6 , 716 – 719 ; (b) Moore , R. E. ; Cheuk , C. ; Yang , X. Q. ; Patterson , G. M. L. ; Bonjouklian , R. ; Smita , T. A. ; Myderse , J. ; Foster , R. S. ; Jones , N. D. ; Skiatzendrtuber , J. K. ; Deeter , J. B. Hapalindoles, antibacterial and antimycotic alkaloids from the cyanophyte hapalosiphon fontinalis . J. Org. Chem. 1987 , 52 , 1036 – 1043 ; (c) Noland , W. E. ; Christensen , G. M. ; Sauer , G. L. ; Dutton , G. G. S. The reaction of nitroolefins with indole . J. Am. Chem. Soc. 1955 , 77 , 456 – 457 .
- (a) Bandini , M. ; Fagioli , M. ; Uma-Ronchi , A. Solid acid–catalysed Michael type conjugate addition of indoles to electron-poor C˭C bonds: Towards high atom economical semi-continuous processes . Adv. Synth. Catal. 2004 , 346 , 545 – 548 ; (b) Szmuskovicz , J. The reaction of substituted indoles with methyl vinyl ketone: New synthesis of 2-methylcarbazole . J. Am. Chem. Soc. 1957 , 79 , 2819 – 2821 .
- (a) Zhang-Ping , Z. ; Kai , L. Microwave-accelerated samarium triiodide catalyzed conjugate addition of indoles with electron-deficient olefins . Synlett 2005 , 10 , 1551 – 1554 ; (b) Komoto , I. ; Kobayashi , S. Lewis acid catalysis in supercritical carbon dioxide. Use of poly(ethylene glycol) derivatives and perfluoroalkylbenzenes as surfactant molecules which enable efficient catalysis in ScCO2 . J. Org. Chem. 2004 , 69 , 680 – 688 ; (c) Bartoli , G. ; Bosco , M. ; Giuli , S. ; Giuliani , A. ; Lucarelli , L. ; Marcantoni , E. ; Sambri , L. ; Torregiani , E. Efficient preparation of 2-indolyl-1-nitroalkane derivatives employing nitroalkenes as versatile Michael acceptors: New practical linear approach to alkyl 9H-β-carboline-4-carboxylate . J. Org. Chem. 2005 , 70 , 1941 – 1944 ; (d) Harrington , P. E. ; Kerr , M. A. Reaction of indoles with electron deficient olefins catalyzed by Yb(OTf)3 ⋅ 3H2O . Synlett 1996 , 1047 – 1048 ; (e) Yadav , J. S. ; Abraham , S. ; Reddy , B. V. S. ; Sabitha , G. InCl3-catalysed conjugate addition of indoles with electron-deficient olefines . Synthesis 2001 , 2165 – 2169 ; (f) Bandini , M. ; Melchiorre , P. ; Melloni , A. ; Umani-Ronchi , A. A practical indium tribromide catalysed addition of indoles to nitro alkenes in aqueous media . Synthesis 2002 , 1110 – 1114 ; (g) Chunch , L. ; Jianming , H. ; Sastry , M. N. V. ; Hulin , F. ; Zhijay , T. ; Ju-Tsung , L. ; Ching-Fa , Y. I2-catalysed Michael addition of indole and pyrrole to nitroolefins . Tetrahedron 2005 , 61 , 11751 – 11757 .
- Li-Tao , A.; Jian-Ping Z. ; Li-Li , Z. ; Yong , Z. Sulfamic acid catalysed Michael addition of indoles and pyrrole to electron-deficient nitroolefins under solvent-free condition . Tetrahedron Lett. 2007 , 48 , 4297 – 4300 .
- Pateliya , M. H. ; Veerababurao , K. ; Chun-Wei , K. ; Ching-Fa , Y. Catalyst-free aqueous-mediated conjugative addition of indoles to β-nitrostyrenes . Tetrahedron Lett. 2008 , 49 , 7005 – 7007 .
- (a) Todd , A. H. ; Brendan , L. W. ; Joanne , T. B. Boric acid catalyzed chemoselective esterfication of α-hydroxycarboxylic acids . Org. Lett. 2004 , 6 , 679 – 681 ; (b) Pingwah , T. Boric acid catalyzed amide formation from carboxylic acids and amines: N-Benzyl-4-phenylbutyramide . Org. Synth. 2005 , 81 , 262 – 268 .