441285-82-1Relevant academic research and scientific papers
Trifluoroethanol as a Unique Additive for the Chemoselective Electrooxidation of Enamines to Access Unsymmetrically Substituted NH-Pyrroles
Baidya, Mrinmay,De Sarkar, Suman,Maiti, Debabrata,Roy, Lisa
, (2021/12/23)
An electrochemical method for the synthesis of unsymmetrically substituted NH-pyrroles is described. The synthetic strategy comprises a challenging heterocoupling between two structurally diverse enamines via sequential chemoselective oxidation, addition,
Novel photosensitized cyclization reactions of ethyl 3-amino-3-phenyl-2- propenoate derivatives to highly substituted pyrroles
Ishida, Yohsuke,Yoshida, Yuhki,Igarashi, Tetsutaro,Sakurai, Tadamitsu
, p. 1691 - 1698 (2013/09/12)
Irradiation of nitrogen-saturated acetonitrile solutions containing ethyl 3-amino-3-phenyl-2-propenoate derivatives with the (Z)-configuration [(Z)- 1] and 10-methylacridinium perchlorate (MAP) at wavelengths longer than 340 nm afforded the corresponding pyrrole derivatives in good to high yields without exhibiting a profound effect related to the substituents. An analysis of the Stern-Volmer plots for the fluorescence quenching of MAP by (Z)-1 showed that this sensitizer fluorescence is efficiently quenched, and hence electron transfer is confirmed to be involved in the primary process of the MAPsensitized cyclization reactions of 1.
The decarboxylative blaise reaction
Jae, Hoon Lee,Bo, Seung Choi,Jay, Hyok Chang,Hee, Bong Lee,Yoon, Joo-Yong,Lee, Jaeick,Shin, Hyunik
, p. 10261 - 10263 (2008/03/28)
(Chemical Equation Presented) Reaction of aryl nitriles with potassium ethyl malonate in the presence of zinc chloride and a catalytic amount of Huenig's base provided β-amino acrylates in moderate to good yield. Compared to the classical Blaise reaction,
Reactions of tetrasulfur tetranitride antimony pentachloride complex (S4N4 SbCl5) with primary β-enaminones and β-enamino esters: Synthesis of 4-substituted 3-aroyl-and 3-ethoxycarbonyl-1,2,5-thiadiazoles
Bae, Su-Hak,Kim, Kyongtae,Park, Young Ja
, p. 159 - 172 (2007/10/03)
The reaction of tetrasulfur tetranitride antimony pentachloride complex (S4N4·SbCl5) with 3-amino-3-alkyl-1-aryl-2-propenones and 3-amino-1,3- diaryl-2-propenones in toluene at 100°C produced 4-substitued 3-aroyl-1,2,5- th
A Convenient Synthesis of 3-Aryl-4H-benzopyranoisoxazol-4-ones
Litinas, Konstantinos E.,Nicolaides, Demetrios N.,Varella, Evangelia A.
, p. 769 - 774 (2007/10/02)
Regioselective 1,3-dipolar cycloaddition of nitrile oxides 5a-c to ethyl o-hydroxycinnamate (3) gave the corresponding ethyl trans-3-aryl-4,5-dihydro-5-(2-hydroxyphenyl)-4-isoxazolecarboxylates 6a-c.Their structure was confirmed by reductive cleavage to 1 and compounds 9a-c.Compounds 6a-c afforded upon heating in the presence of pyridine the 3-aryl-4H-benzopyranoisoxazol-4-ones 11a-c.Compound 10c was also isolated from 6c and transformed thermally into 11c.
