Gold-catalyzed intramolecular hydroamination of terminal alkynes in aqueous media: efficient and regioselective synthesis of indole-1-carboxamides

2009 ◽  
Vol 11 (8) ◽  
pp. 1201 ◽  
Author(s):  
Deju Ye ◽  
Jinfang Wang ◽  
Xu Zhang ◽  
Yu Zhou ◽  
Xiao Ding ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Regioselective Synthesis ◽  
Terminal Alkynes

Reactions of salicylaldehydes with activated terminal alkynes in aqueous media: synthesis of 3-substituted 4-hydroxy chromenes as potential cytotoxic agents

RSC Advances ◽  
2014 ◽  
Vol 4 (47) ◽  
pp. 24870 ◽  
Author(s):  
Shambhu Nath Singh ◽  
Ramu Bopanni ◽  
Sarva Jayaprakash ◽  
K. Venkateshwara Reddy ◽  
Mohd Ashraf Ashfaq ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Cytotoxic Agents ◽  
Terminal Alkynes

scholarly journals Bis-NHC–Ag/Pd(OAc)2 Catalytic System Catalyzed Transfer Hydrogenation Reaction

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 8
Author(s):  
Hui-Ju Chen ◽  
Chien-Cheng Chiu ◽  
Tsui Wang ◽  
Dong-Sheng Lee ◽  
Ta-Jung Lu
Keyword(s):  
Functional Groups ◽  
Catalytic System ◽  
High Efficiency ◽  
Aqueous Media ◽  
Hydrogenation Reaction ◽  
Transfer Hydrogenation ◽  
Terminal Alkynes ◽  
Wide Range ◽  
Transfer Hydrogenation Reaction

The bis-NHC–Ag/Pd(OAc)2 catalytic system (NHC = N-heterocyclic carbene), a combination of bis-NHC–Ag complex and Pd(OAc)2, was found to be a smart catalyst in the Pd-catalyzed transfer hydrogenation of various functionalized arenes and internal/terminal alkynes. The catalytic system demonstrated high efficiency for the reduction of a wide range of various functional groups such as carbonyls, alkynes, olefins, and nitro groups in good to excellent yields and high chemoselectivity for the reduction of functional groups. In addition, the protocol was successfully exploited to stereoselectivity for the transformation of alkynes to alkenes in aqueous media under air. This methodology successfully provided an alternative useful protocol for reducing various functional groups and a simple operational protocol for transfer hydrogenation.

Cycloaddition of N-sulfonyl and N-sulfamoyl azides with alkynes in aqueous media for the selective synthesis of 1,2,3-triazoles

2021 ◽  
Author(s):  
Thumpati Prasanth ◽  
Gargi Chakraborti ◽  
Tirtha Mandal ◽  
Velayutham Ravichandiran ◽  
Jyotirmayee Dash
Keyword(s):  
Aqueous Media ◽  
Selective Synthesis ◽  
Terminal Alkynes ◽  
Amide Derivatives

The cycloaddition of N-sulfonyl and N-sulfamoyl azides with terminal alkynes generally produces amide derivatives via ketenimine intermediates. We herein delineate a Cu(I) catalyzed method using a prolinamide ligand that selectively...

Novel Intramolecular Allylindination of Terminal Alkynes in Aqueous Media.

ChemInform ◽  
2003 ◽  
Vol 34 (11) ◽  
Author(s):  
Matthew M. Salter ◽  
Sofia Sardo-Inffiri
Keyword(s):  
Aqueous Media ◽  
Terminal Alkynes

Ruthenium-PromotedZ-Selective Head-to-Head Dimerization of Terminal Alkynes in Organic and Aqueous Media

2005 ◽  
Vol 24 (18) ◽  
pp. 4330-4332 ◽  
Author(s):  
Xingguo Chen ◽  
Peng Xue ◽  
Herman H. Y. Sung ◽  
Ian D. Williams ◽  
Maurizio Peruzzini ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Terminal Alkynes
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