A catalyst-free method for the synthesis of 1,4,2-dithiazoles from isothiocyanates and hydroxylamine triflic acid salts

2021 ◽  
Author(s):  
Zhenyu An ◽  
Ting Wang ◽  
Yafeng Liu ◽  
Yi Ren ◽  
Rulong Yan
Keyword(s):  
Triflic Acid ◽  
Catalyst Free ◽  
Acid Salts

A catalyst-free method for the preparation of 1,4,2-dithiazoles is developed by reactions of isothiocyanates with hydroxylamine triflic acid salts. This reaction achieves C-S, C-N, and S-N bonds formation and a...

One-Pot, Catalyst-Free Synthesis of Nitriles from Aldehydes Using Aminating Reagent MsONH3OTf

Synlett ◽  
2021 ◽  
Author(s):  
Tharcisse Gatera ◽  
Daijiao Zhuang ◽  
Rulong Yan
Keyword(s):  
Functional Group ◽  
Triflic Acid ◽  
One Pot ◽  
Aliphatic Aldehydes ◽  
Mild Conditions ◽  
Catalyst Free ◽  
N Source ◽  
Acid Salts

AbstractAn eco-friendly protocol to synthesize nitriles from their corresponding aromatic and aliphatic aldehydes in excellent yields has been developed. This is a catalyst-free protocol which employs an aminating reagent (MsONH3OTf) under mild conditions. The hydroxylamine triflic acid salts (MsONH3OTf) acted as the N source for this protocol. Our protocol proved to be easy to perform and presented good functional group tolerance.

Efficient Molar-Scale Synthesis of 1-Methyl-5-acylimidazole Triflic Acid Salts

2000 ◽  
Vol 4 (6) ◽  
pp. 613-614 ◽  
Author(s):  
Bang-Chi Chen ◽  
Amanda P. Skoumbourdis ◽  
Joseph E. Sundeen ◽  
George C. Rovnyak ◽  
Sarah C. Traeger
Keyword(s):  
Triflic Acid ◽  
Molar Scale ◽  
Acid Salts

A novel method for activation of thioglycosides, combination of N-bromosuccinimide and triflic acid salts

1993 ◽  
Vol 34 (13) ◽  
pp. 2187-2190 ◽  
Author(s):  
Fukase Koichi ◽  
Hasuoka Atsushi ◽  
Kusumoto Shoichi
Keyword(s):  
Triflic Acid ◽  
Novel Method ◽  
Acid Salts

ChemInform Abstract: Efficient Molar-Scale Synthesis of 1-Methyl-5-acylimidazole Triflic Acid Salts.

ChemInform ◽  
2001 ◽  
Vol 32 (15) ◽  
pp. no-no
Author(s):  
Bang-Chi Chen ◽  
Amanda P. Skoumbourdis ◽  
Joseph E. Sundeen ◽  
George C. Rovnyak ◽  
Sarah C. Traeger
Keyword(s):  
Triflic Acid ◽  
Molar Scale ◽  
Acid Salts

Metal-Free Photoinduced Hydroalkylation Cascade Enabled by an Electron-Donor-Acceptor Complex

2020 ◽  
Author(s):  
José Tiago Menezes Correia ◽  
Gustavo Piva da Silva ◽  
Camila Menezes Kisukuri ◽  
Elias André ◽  
Bruno Pires ◽  
...  
Keyword(s):  
Electron Donor ◽  
Functional Group ◽  
Photoexcited Electron ◽  
One Pot ◽  
Quaternary Centers ◽  
Metal Free ◽  
Acceptor Complex ◽  
Catalyst Free ◽  
Donor Acceptor ◽  
Radical Cascade

A metal- and catalyst-free photoinduced radical cascade hydroalkylation of 1,7-enynes has been disclosed. The process is triggered by a SET event involving a photoexcited electron-donor-aceptor complex between NHPI ester and Hantzsch ester, which decomposes to afford a tertiary radical that is readily trapped by the enyne. <a>The method provides an operationally simple, robust and step-economical approach to the construction of diversely functionalized dihydroquinolinones bearing quaternary-centers. A sequential one-pot hydroalkylation-isomerization approach is also allowed giving access to a family of quinolinones. A wide substrate scope and high functional group tolerance was observed in both approaches</a>.

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