ChemInform Abstract: sp3-sp2C-C Bond Formation via Broensted Acid Trifluoromethanesulfonic Acid Catalyzed Direct Coupling Reaction of Alcohols and Alkenes.

ChemInform ◽  
2012 ◽  
Vol 43 (17) ◽  
pp. no-no
Author(s):  
Hui-Lan Yue ◽  
Wei Wei ◽  
Ming-Ming Li ◽  
Yong-Rong Yang ◽  
Jian-Xin Ji
Keyword(s):  
Bond Formation ◽  
Coupling Reaction ◽  
Trifluoromethanesulfonic Acid ◽  
Direct Coupling ◽  
Acid Catalyzed

scholarly journals Helicene synthesis by Brønsted acid-catalyzed cycloaromatization in HFIP [(CF3)2CHOH]

2021 ◽  
Vol 17 ◽  
pp. 396-403
Author(s):  
Takeshi Fujita ◽  
Noriaki Shoji ◽  
Nao Yoshikawa ◽  
Junji Ichikawa
Keyword(s):  
Bond Formation ◽  
Catalytic Amount ◽  
Trifluoromethanesulfonic Acid ◽  
Higher Order ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Facile Synthesis ◽  
Brönsted Acid ◽  
Acid Catalyzed

A facile synthesis of carbo- and heterohelicenes was achieved via tandem cycloaromatization of bisacetal precursors, which were readily prepared through C–C bond formation by Suzuki–Miyaura coupling. This cyclization was efficiently realized by a catalytic amount of trifluoromethanesulfonic acid (TfOH) in a cation-stabilizing solvent, 1,1,1,3,3,3-hexafluoropropan-2-ol (HFIP), which readily allowed gram-scale syntheses of higher-order helicenes, double helical helicenes, and heterohelicenes.

Ligand-Free Copper Powder Catalyzed Direct Coupling Reaction of Heterocyclic C–H Bonds and Aryl Halides

Synthesis ◽  
2012 ◽  
Vol 44 (19) ◽  
pp. 3027-3032 ◽  
Author(s):  
Yu Yuan ◽  
Ying Han ◽  
Xiaohu Wang ◽  
Xiaowei Wang ◽  
Liangzhong Lv ◽  
...  
Keyword(s):  
Copper Powder ◽  
Coupling Reaction ◽  
Direct Coupling ◽  
Aryl Halides ◽  
Ligand Free

Green Amide Bond Formation in Water via Direct Coupling of Metal Carboxylate Salts with Ammonium Salts at Room Temperature

2021 ◽  
Author(s):  
Truong Thanh Tung ◽  
John Nielsen
Keyword(s):  
Room Temperature ◽  
Bond Formation ◽  
Direct Coupling ◽  
Ammonium Salts ◽  
Amide Bond ◽  
Metal Carboxylate ◽  
Amide Bond Formation ◽  
Simple Protocol

Herein, we report the green, expedite, and practically simple protocol for direct coupling of carboxylate salts and ammonium salts under ACN/H2O conditions at room temperature without the addition of tertiary...

Palladium-catalyzed denitrative Sonogashira-type cross-coupling of nitrobenzenes with terminal alkynes

2020 ◽  
Vol 56 (5) ◽  
pp. 790-793 ◽  
Author(s):  
Boya Feng ◽  
Yudong Yang ◽  
Jingsong You
Keyword(s):  
Bond Formation ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Terminal Alkynes ◽  
Cross Coupling Reaction ◽  
Palladium Catalyzed

Described herein is a palladium-catalyzed cross-coupling reaction between nitroarenes and terminal alkynes, offering a facile method for C(sp2)–C(sp) bond formation.

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