Synthesis of medicinally important quinazolines decorated with 1,4-disubstituted-1,2,3-triazoles using CuSO4·5H2O–Et3N catalytic system

RSC Advances ◽  
2014 ◽  
Vol 4 (45) ◽  
pp. 23679-23684 ◽  
Author(s):  
Monika Vashist ◽  
Khushbu Kushwaha ◽  
Reena Kaushik ◽  
Subhash C. Jain
Keyword(s):  
Catalytic System ◽  
Room Temperature ◽  
Dipolar Cycloaddition ◽  
Terminal Alkyne ◽  
Sulfate Pentahydrate ◽  
System P ◽  
Direct Use

The direct use of Cu(ii) sulfate pentahydrate in the presence of triethylamine afforded 1,4-disubstituted-1,2,3-triazoles via 1,3-dipolar cycloaddition of terminal alkyne(s) to azide(s) at room temperature.

Enantioselective synthesis of 8-azabicyclo[3.2.1]octanes via asymmetric 1,3-dipolar cycloadditions of cyclic azomethine ylides using a dual catalytic system

2019 ◽  
Vol 55 (11) ◽  
pp. 1552-1555 ◽  
Author(s):  
Hiroyuki Suga ◽  
Masahiro Yoshiwara ◽  
Takaaki Yamaguchi ◽  
Takashi Bando ◽  
Mizuki Taguchi ◽  
...  
Keyword(s):  
Catalytic System ◽  
Enantioselective Synthesis ◽  
Azomethine Ylides ◽  
Dipolar Cycloaddition ◽  
Dipolar Cycloadditions ◽  
System P

The asymmetric 1,3-dipolar cycloaddition between diazo imine-derived cyclic azomethine ylides and acryloylpyrazolidinone using a dual catalytic system is reported.

Room-temperature selective oxidation of 2-naphthol to BINOL using a Au/SrTiO3–H2O2 catalytic system

2015 ◽  
Vol 51 (100) ◽  
pp. 17669-17671 ◽  
Author(s):  
Shin-ichi Naya ◽  
Yuta Hiramoto ◽  
Miwako Teranishi ◽  
Hiroaki Tada
Keyword(s):  
Particle Size ◽  
Catalytic Activity ◽  
Gold Nanoparticle ◽  
Selective Oxidation ◽  
Catalytic System ◽  
Room Temperature ◽  
Bond Formation ◽  
System P ◽  
Au Particle Size

Gold nanoparticle-loaded SrTiO3 (Au/SrTiO3) effectively catalyzes the selective C–C bond formation between 2-naphthol molecules to yield BINOL in the presence of H2O2, and the catalytic activity increases with decreasing Au particle size (d) in the range 2.6 ≤ d ≤ 8.9 nm.

A general, simple and green process to access pyrrolo[2,1-a]isoquinolines using a KI/TBHP catalytic system

RSC Advances ◽  
2014 ◽  
Vol 4 (52) ◽  
pp. 27250-27258 ◽  
Author(s):  
Huan-Ming Huang ◽  
Fang Huang ◽  
Yu-Jin Li ◽  
Jian-Hong Jia ◽  
Qing Ye ◽  
...  
Keyword(s):  
Catalytic System ◽  
Cascade Reaction ◽  
Dipolar Cycloaddition ◽  
Green Process ◽  
System P

A novel KI/TBHP-catalyzed 1,3-dipolar cycloaddition/oxidation/aromatization cascade reaction provided a general, efficient and green access to biologically important pyrrolo[2,1-a]isoquinolines.

Introducing deep eutectic solvents as biorenewable media for Au(i)-catalysed cycloisomerisation of γ-alkynoic acids: an unprecedented catalytic system

2014 ◽  
Vol 50 (85) ◽  
pp. 12927-12929 ◽  
Author(s):  
María J. Rodríguez-Álvarez ◽  
Cristian Vidal ◽  
Josefina Díez ◽  
Joaquín García-Álvarez
Keyword(s):  
Catalytic System ◽  
Room Temperature ◽  
Eutectic Mixture ◽  
Deep Eutectic Solvents ◽  
Co Catalysts ◽  
System P

Cycloisomerisation reactions of γ-alkynoic acids can be conveniently performed in the eutectic mixture 1ChCl/2Urea at room temperature, under air and in the absence of co-catalysts by using a novel iminophosphorane–Au(i) complex.

Pure room temperature phosphorescence emission of organic host-guest doped system with quantum efficiency of 64%

2021 ◽  
Author(s):  
Xiaoqing Liu ◽  
Wenbo Dai ◽  
Qian Junjie ◽  
Yunxiang Lei ◽  
Miaochang Liu ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Room Temperature ◽  
Room Temperature Phosphorescence ◽  
Halogen Atoms ◽  
System P ◽  
Phosphorescence Emission

A new doped system with pure phosphorescent emission is constructed using four 1-(4-(diphenylamino)phenyl)-2-phenylethan-1-one derivatives containing halogen atoms as the guests and benzophenone as the host. That is, the doped system...

Atom-transfer radical addition of fluoroalkyl bromides to alkenes via a photoredox/copper catalytic system

2021 ◽  
Author(s):  
Vladislav S. Kostromitin ◽  
Artem A. Zemtsov ◽  
Vladimir A. Kokorekin ◽  
Vitalij V. Levin ◽  
Alexander D. Dilman
Keyword(s):  
Catalytic System ◽  
Radical Addition ◽  
Atom Transfer ◽  
Alkyl Bromides ◽  
System P ◽  
Atom Transfer Radical Addition

A method for the addition of fluorinated alkyl bromides to alkenes is described.

Synthesis of 2-aminothiazoles from methylcarbonyl compounds using a Fe3O4 nanoparticle-N-halo reagent catalytic system

RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64749-64755 ◽  
Author(s):  
Masoud Sadeghi ◽  
Javad Safari ◽  
Zohre Zarnegar
Keyword(s):  
Catalytic System ◽  
Fe3o4 Nanoparticle ◽  
Catalytic Systems ◽  
System P

An efficient protocol is developed for the synthesis of 2-aminothiazoles from unfunctionalized methylcarbonyl compounds using Fe3O4 nanoparticle-N-halo reagent catalytic systems.

A novel enantioselective synthesis of 6H-dibenzopyran derivatives by combined palladium/norbornene and cinchona alkaloid catalysis

2015 ◽  
Vol 13 (8) ◽  
pp. 2260-2263 ◽  
Author(s):  
Di Xu ◽  
Li Dai ◽  
Marta Catellani ◽  
Elena Motti ◽  
Nicola Della Ca’ ◽  
...  
Keyword(s):  
Catalytic System ◽  
Enantioselective Synthesis ◽  
Cinchona Alkaloid ◽  
System P ◽  
First Time

Chiral dibenzopyran derivatives were obtained by cinchona alkaloid, as organocatalyst, in combination, for the first time, with palladium/norbornene catalytic system.

Cobalt(ii)-catalyzed chelation-assisted C–H iodination of aromatic amides with I2

2018 ◽  
Vol 54 (11) ◽  
pp. 1359-1362 ◽  
Author(s):  
Yadagiri Kommagalla ◽  
Ken Yamazaki ◽  
Takuma Yamaguchi ◽  
Naoto Chatani
Keyword(s):  
Catalytic System ◽  
Cobalt Metal ◽  
System P

An air stable and inexpensive cobalt-metal, mild and efficient catalytic system.

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