sp3-sp2 C-C Bond Formation via Brønsted Acid Trifluoromethanesulfonic Acid-Catalyzed Direct Coupling Reaction of Alcohols and Alkenes

2011 ◽  
Vol 353 (17) ◽  
pp. 3139-3145 ◽  
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 ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid ◽  
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.

Synthetic Scope of Brønsted Acid-Catalyzed Reactions of Carbonyl Compounds and Ethyl Diazoacetate

2021 ◽  
Author(s):  
Mizzanoor Rahaman ◽  
M. Shahnawaz Ali ◽  
Khorshada Jahan ◽  
Damon Hinz ◽  
Jawad Bin Belayet ◽  
...  
Keyword(s):  
Carbonyl Compounds ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Ethyl Diazoacetate ◽  
Brönsted Acid ◽  
Acid Catalyzed ◽  
Catalyzed Reactions

Brønsted Acid-Catalyzed Friedel-Crafts-type Alkylation of Arenes with αAryl Diazoacetates

2021 ◽  
pp. 152751
Author(s):  
Wenming Chen ◽  
Guifang Chen ◽  
Biao Wang ◽  
Wei Wang ◽  
Wei Huang ◽  
...  
Keyword(s):  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid ◽  
Acid Catalyzed

Brønsted Acid Catalyzed (4 + 2) Cyclocondensation of 3-Substituted Indoles with Donor–Acceptor Cyclopropanes

2021 ◽  
Author(s):  
Alesandere Ortega ◽  
Uxue Uria ◽  
Tomás Tejero ◽  
Liher Prieto ◽  
Efraim Reyes ◽  
...  
Keyword(s):  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid ◽  
Donor Acceptor ◽  
Acid Catalyzed
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