ChemInform Abstract: Nano-Copper Catalyzed Highly Regioselective Synthesis of 2,4-Disubstituted Pyrroles from Terminal Alkynes and Isocyanides.

ChemInform ◽  
2016 ◽  
Vol 47 (1) ◽  
Author(s):  
Dipak Kumar Tiwari ◽  
Jaya Pogula ◽  
B. Sridhar ◽  
Dharmendra Kumar Tiwari ◽  
Pravin R. Likhar
Keyword(s):  
Regioselective Synthesis ◽  
Terminal Alkynes

Magnetically recoverable Cu0/Fe3O4catalyzed highly regioselective synthesis of 2,3,4-trisubstituted pyrroles from unactivated terminal alkynes and isocyanides

2016 ◽  
Vol 52 (25) ◽  
pp. 4675-4678 ◽  
Author(s):  
Dipak Kumar Tiwari ◽  
Mandalaparthi Phanindrudu ◽  
Vinod Kumar Aravilli ◽  
B. Sridhar ◽  
Pravin R. Likhar ◽  
...  
Keyword(s):  
Regioselective Synthesis ◽  
Terminal Alkynes ◽  
One Pot

An efficient, one pot tandem, Cu0/Fe3O4catalyzed highly regioselective synthesis of 2,3,4-trisubstituted pyrroles from unactivated terminal alkynes and isocyanides.

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

scholarly journals Synthesis of Tri- and Disubstituted Fluorenols and Derivatives Thereof Using Catalytic [2+2+2] Cyclotrimerization

Catalysts ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 942 ◽  
Author(s):  
Ilaria Caivano ◽  
Reinhard P. Kaiser ◽  
Florian Schnurrer ◽  
Jiří Mosinger ◽  
Ivana Císařová ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Regioselective Synthesis ◽  
Terminal Alkynes ◽  
Preferential Formation

A method for regioselective synthesis of 2,4-disubstituted and more highly substituted fluorenols using catalytic [2+2+2]cyclotrimerization of mono- and disubstituted diynes with terminal alkynes was explored. In the former case, the preferential formation of the 2,4-regioisomers was achieved in the presence of Cp*Ru(cod)Cl, whereas Rh-based catalysts tended to provide 3,4-regioisomers as the major products. The 2,4-disubstituted fluorenols were converted into the corresponding 9,9′-spirobifluorene derivatives and their structural and photophysical properties were evaluated.

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