scholarly journals A catalyst-free bis(triflyl)ethylation/benzannulation reaction: rapid access to carbazole-based superacidic carbon acids from alkynols

2020 ◽  
Vol 56 (12) ◽  
pp. 1795-1798 ◽  
Author(s):  
Irene Martín-Mejías ◽  
Cristina Aragoncillo ◽  
Hikaru Yanai ◽  
Shoki Hoshikawa ◽  
Yuuki Fujimoto ◽  
...  
Keyword(s):  
Mild Conditions ◽  
Catalyst Free ◽  
Rapid Access ◽  
Carbon Acids

A metal- and irradiation-free preparation of Tf2CHCH2-decorated carbazoles from 1-(indol-2-yl)but-3-yn-1-ols under mild conditions with a 2-fluoropyridinium salt as the Tf2CCH2 source has been attained in a straightforward and selective manner.

Continuous flow processes for the S-alkynylation of cysteine-containing peptides and thioglycoside under catalyst-free, oxidant-free and mild conditions

2021 ◽  
Author(s):  
Long-Zhou Qin ◽  
Xin Yuan ◽  
Jie Liu ◽  
Meng-yu Wu ◽  
Qi Sun ◽  
...  
Keyword(s):  
Continuous Flow ◽  
Mild Conditions ◽  
Catalyst Free ◽  
Flow Processes ◽  
Novel Method

Herein, we develop a novel method for the selective alkynylation of cysteine-containing peptides and 1-thioglycoside residues by the use of continuous flow. This method was characterised by the mild conditions...

Anhydrous Conditions Enable the Catalyst‐Free Carboxylation of Aromatic Alkynes with CO 2 under Mild Conditions

2020 ◽  
Vol 103 (2) ◽  
Author(s):  
Davide Toniolo ◽  
Felix D. Bobbink ◽  
Paul J. Dyson ◽  
Marinella Mazzanti
Keyword(s):  
Mild Conditions ◽  
Catalyst Free

Catalyst-free, visible-light-promoted S–H insertion reaction between thiols and α-diazoesters

2020 ◽  
Vol 18 (46) ◽  
pp. 9494-9498
Author(s):  
Jingya Yang ◽  
Ganggang Wang ◽  
Shuwen Chen ◽  
Ben Ma ◽  
Hongyan Zhou ◽  
...  
Keyword(s):  
Visible Light ◽  
Insertion Reaction ◽  
Mild Conditions ◽  
Catalyst Free

A catalyst- and additive-free, visible-light-promoted S–H insertion reaction between thiols and α-diazoesters has been developed under mild conditions.

ChemInform Abstract: Catalyst-Free Amidation of Aldehyde with Amine under Mild Conditions.

ChemInform ◽  
2015 ◽  
Vol 46 (51) ◽  
pp. no-no
Author(s):  
Hongyin Yang ◽  
Wenjian Hu ◽  
Shengjue Deng ◽  
Tiantian Wu ◽  
Haiman Cen ◽  
...  
Keyword(s):  
Mild Conditions ◽  
Catalyst Free

ChemInform Abstract: Facile Catalyst-Free Allylation of Isatins under Mild Conditions in Dimethylformamide.

ChemInform ◽  
2011 ◽  
Vol 42 (43) ◽  
pp. no-no
Author(s):  
Li-Na Jia ◽  
Lin Peng ◽  
Liang-Liang Wang ◽  
Jian-Fei Bai ◽  
Ji-Ya Fu ◽  
...  
Keyword(s):  
Mild Conditions ◽  
Catalyst Free

Convenient and efficient synthesis of disubstituted piperazine derivatives by catalyst-free, atom-economical and tricomponent domino reactions

RSC Advances ◽  
2015 ◽  
Vol 5 (14) ◽  
pp. 10768-10772 ◽  
Author(s):  
Hong-Ru Dong ◽  
Zi-Bao Chen ◽  
Rong-Shan Li ◽  
Heng-Shan Dong ◽  
Zhi-Xiang Xie
Keyword(s):  
Free Atom ◽  
Domino Reactions ◽  
Efficient Synthesis ◽  
One Pot ◽  
Diversity Oriented Synthesis ◽  
Mild Conditions ◽  
Catalyst Free ◽  
Piperazine Derivatives ◽  
High Yields

One-pot, atom-economical, catalyst-free and tri-component domino reactions are applied to diversity-oriented synthesis (DOS) of disubstituted piperazine derivatives under mild conditions with moderate to high yields.

scholarly journals Catalyst-free synthesis of 4-acyl-NH-1,2,3-triazoles by water-mediated cycloaddition reactions of enaminones and tosyl azide

2018 ◽  
Vol 14 ◽  
pp. 2348-2353 ◽  
Author(s):  
Lu Yang ◽  
Yuwei Wu ◽  
Yiming Yang ◽  
Chengping Wen ◽  
Jie-Ping Wan
Keyword(s):  
High Efficiency ◽  
Cycloaddition Reactions ◽  
Mild Conditions ◽  
Catalyst Free

The synthesis of 4-acyl-NH-1,2,3-triazoles has been accomplished with high efficiency through the cycloaddition reactions between N,N-dimethylenaminones and tosyl azide. This method is featured with extraordinary sustainability by employing water as the sole medium, free of any catalyst or additive, authentically mild conditions (40 °C stirring) as well as practical scalability.

Catalyst-free dehydrocoupling of amines, alcohols, and thiols with pinacol borane and 9-borabicyclononane (9-BBN)

2016 ◽  
Vol 52 (69) ◽  
pp. 10563-10565 ◽  
Author(s):  
Erik A. Romero ◽  
Jesse L. Peltier ◽  
Rodolphe Jazzar ◽  
Guy Bertrand
Keyword(s):  
Mild Conditions ◽  
Catalyst Free

The dehydrocoupling of pinacol borane and 9-borabicyclononane with amines, alcohols and thiols can be achieved under mild conditions without catalyst.

Ligand- and catalyst-free intramolecular C-S bond formation: direct access to indalothiochromen- 4-ones

2015 ◽  
Vol 21 (3) ◽  
pp. 159-163 ◽  
Author(s):  
T.A. Jenifer Vijay ◽  
Nagarakere C. Sandhya ◽  
C.S. Pavankumar ◽  
Kanchugarakoppal S. Rangappa ◽  
Kempegowda Mantelingu
Keyword(s):  
Functional Group ◽  
Direct Synthesis ◽  
Bond Formation ◽  
Direct Access ◽  
Mild Conditions ◽  
Catalyst Free

AbstractAn efficient ligand- and catalyst-free intramolecular S-arylation leading to the direct synthesis of indalothiochromen-4-ones from simple dithioesters under mild conditions has been developed. This method is particularly noteworthy given its experimental simplicity, high generality, and good functional group toleration.

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