Facile Synthesis of Polysubstituted Imidazoles through CBr4-Mediated Tandem Cyclization of Amidines with 1,3-Dicarbonyl Compounds or Ketones

2016 ◽  
Vol 2017 (2) ◽  
pp. 237-240 ◽  
Author(s):  
Xiaoqiang Zhou ◽  
Haojie Ma ◽  
Chong Shi ◽  
Yixin Zhang ◽  
XingXing Liu ◽  
...  
Keyword(s):  
Facile Synthesis ◽  
Dicarbonyl Compounds ◽  
Tandem Cyclization

Condensation of 1,2-dicarbonyl compounds with modified Huisgen zwitterions: synthesis of N-aryl–N-acyl hydrazones

2020 ◽  
Vol 18 (3) ◽  
pp. 530-537
Author(s):  
Jialin Liu ◽  
Jilei Cao ◽  
Rongfang Liu ◽  
Ruifeng Li ◽  
Yan Qiao ◽  
...  
Keyword(s):  
Facile Synthesis ◽  
Dicarbonyl Compounds ◽  
First Time

The reactivity patterns of the modified Huisgen zwitterions derived from arylazocarboxylates toward 1,2-dicarbonyl compounds have been studied for the first time for a facile synthesis of N-aryl–N-acyl hydrazones.

scholarly journals A facile synthesis of phenazine and quinoxaline (new 1,4-benzo diazine) derivatives using magnesium sulfate heptahydrate as a catalyst

2011 ◽  
Vol 76 (9) ◽  
pp. 1191-1198 ◽  
Author(s):  
Bahador Karami ◽  
Saeed Khodabakhshi
Keyword(s):  
Catalytic Activity ◽  
Magnesium Sulfate ◽  
Room Temperature ◽  
Facile Synthesis ◽  
Dicarbonyl Compounds ◽  
Sulfate Heptahydrate ◽  
Quinoxaline Derivatives ◽  
Work Up ◽  
Derivatives Of

Convenient and simple procedures for the synthesis of phenazine and quinoxaline derivatives were developed via a reaction of ophenylenediamines and 1,2-dicarbonyl compounds. In addition, the synthesis of two new derivatives of 1,4-benzo diazine derivatives and the catalytic activity of magnesium sulfate heptahydrate (MgSO4?7H2O) in the room temperature condensation of o-phenylenediamines and 1,2- dicarbonyl compounds in ethanol as solvent are reported. This method has many appealing attributes, such as excellent yields, short reactions times, and simple work-up procedures.

Iron-catalyzed tandem cyclization of olefinic dicarbonyl compounds with benzylic Csp3–H bonds for the synthesis of dihydrofurans

2015 ◽  
Vol 51 (23) ◽  
pp. 4803-4806 ◽  
Author(s):  
Li-Na Guo ◽  
Shun Wang ◽  
Xin-Hua Duan ◽  
Shi-Liu Zhou
Keyword(s):  
Radical Cyclization ◽  
Quaternary Carbon ◽  
Dicarbonyl Compounds ◽  
Ready Access ◽  
Tandem Cyclization

A novel iron-catalyzed radical cyclization of olefinic dicarbonyl compounds with benzyl hydrocarbons and simple alkanes has been developed. This protocol provides ready access to a variety of dihydrofurans containing a quaternary carbon center in moderate to good yields.

ChemInform Abstract: Tandem Cyclization of a Bispyridinium Chloride: Facile Synthesis of Substituted Indolizines.

ChemInform ◽  
2014 ◽  
Vol 45 (11) ◽  
pp. no-no
Author(s):  
Marta Costa ◽  
Jennifer Noro ◽  
Alexandra Brito ◽  
Fernanda Proenca
Keyword(s):  
Facile Synthesis ◽  
Tandem Cyclization

Facile Synthesis of 2-Fluoro-1,3-dicarbonyl Compounds with Aqueous Hydrofluoric Acid Mediated by Iodosylarenes

Synthesis ◽  
2013 ◽  
Vol 45 (22) ◽  
pp. 3125-3130 ◽  
Author(s):  
Tsugio Kitamura ◽  
Satoshi Kuriki ◽  
Kensuke Muta ◽  
Mohammad Morshed ◽  
Kazutaka Muta ◽  
...  
Keyword(s):  
Hydrofluoric Acid ◽  
Facile Synthesis ◽  
Dicarbonyl Compounds
Sign in / Sign up

Export Citation Format

Share Document