Dian-Shun Guo
Hong Kong University of Science and Technology
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Publication
Featured researches published by Dian-Shun Guo.
Tetrahedron Letters | 2001
Wei-Min Dai; Dian-Shun Guo; Li-Ping Sun
A novel and general synthesis of indoles has been established by utilizing 2-aminophenols as the starting materials. The key step is a modified Pd(0)–Cu(I)-catalyzed cross-coupling of 1-alkynes with 2-carboxamidoaryl triflates in the presence of n-Bu4NI as the additive. The 2-alkynylanilides obtained were subjected to an alkoxide-mediated cyclization to provide a number of indole containing compounds possessing substituents at the C2, C4, C5, and/or C6 position(s) in good overall yields.
Tetrahedron Letters | 2002
Wei-Min Dai; Li-Ping Sun; Dian-Shun Guo
A general and efficient synthesis of indoles possessing a nitrogen substituent at the C4, C5, C6, and C7 positions has been developed. Starting from commercially available nitro 2-aminophenols, 5-, 6-, and 7-arenesulfamoylindoles were synthesized via a base-promoted ring closure of 2-alkynylanilides, reduction of the nitro group, and sulfonylation. C4 nitrogen substituted indoles were synthesized from 2-chloro-1,3-dinitrobenzene via cyclization of 2-alkynyl-1,3-diaminobenzene as the key step.
Organic Letters | 2003
Wei-Min Dai; Dian-Shun Guo; Li-Ping Sun; Xianghong Huang
The 11th Symposium on Chemistry Postgraduate Research in Hong Kong, The Hong Kong Polytechnic University, Hong Kong | 2004
Wei-Min Dai; Li-Ping Sun; Dian-Shun Guo
10th Symposium on Chemistry Postgraduate Research in Hong Kong, Hong Kong, March 22 | 2003
Wei-Min Dai; Li-Ping Sun; Dian-Shun Guo; Xianghong Huang
10th Symposium on Chemistry Postgraduate Research in Hong Kong, Hong Kong, March 22 | 2003
Wei-Min Dai; Dian-Shun Guo; Li-Ping Sun; Xianghong Huang
The 9th Symposium on Chemistry Postgraduate Research in Hong Kong, The Chinese University of Hong Kong, Hong Kong, 23 Mar 02 | 2002
Wei-Min Dai; Dian-Shun Guo; Li-Ping Sun
The 9th Symposium on Chemistry Postgraduate Research in Hong Kong, 23 March, The Chinese University of Hong Kong, Hong Kong | 2002
Wei-Min Dai; Li-Ping Sun; Dian-Shun Guo
3rd International Symposium for Chinese Medicinal Chemists, HKUST, Hong Kong, China, December 28-31 | 2002
Wei-Min Dai; Dian-Shun Guo; Li-Ping Sun; Xianghong Huang
3rd International Symposium for Chinese Medicinal Chemists, HKUST, Hong Kong, China, December 28-31 | 2002
Wei-Min Dai; Li-Ping Sun; Dian-Shun Guo; Xianghong Huang