Lactic acid as an invaluable bio-based solvent for organic reactions
作者:Jie Yang、Jia-Neng Tan、Yanlong Gu
DOI:10.1039/c2gc36083g
日期:——
3-dicarbonyl compounds. In these reactions, lactic acidsolvent exhibited many advantages including bio-based origin, superior synthetic efficiency, ease of isolating the product and good recyclability of the reaction medium. The concept of using lactic acid as a green solvent not only enriches the diversity and versatility of bio-based green solvents, but also offers us an effective means for designing
Visible light-promoted synthesis of pyrrolidinone derivatives <i>via</i> Rose Bengal as a photoredox catalyst and their photophysical studies
作者:Arup Dutta、Mostofa A. Rohman、Ridaphun Nongrum、Aiborlang Thongni、Sivaprasad Mitra、Rishanlang Nongkhlaw
DOI:10.1039/d1nj00343g
日期:——
Herein, we report an intramolecular radical cyclization reaction towards the synthesis of pyrrolidinone derivatives via metal-free photoredox catalysis under irradiation from blue LEDs. Some of the remarkable features of this protocol include synthetic efficiency, green reaction profile, easy isolation of products and short reaction time. The photophysical properties of synthesized compounds were investigated
as a sulfonic acid-functionalized ionic liquid was demonstrated for the synthesis of pyrrolidinone derivatives under mild conditions. The electronic effect of substituents on aniline derivatives was investigated. Further, a study on the structure–activity relationship of ionic liquids containing sulfonic groups for the synthesis of ethyl-2-(4-chlorophenyl)-4-hydroxy-5-oxo-1-(p-tolyl)-2,5-dihydro-1H
Green one-pot multicomponent synthesis of pyrrolidinones using planetary ball milling process under solvent-free conditions
作者:Nader Ghaffari Khaligh、Taraneh Mihankhah、Mohd Rafie Johan
DOI:10.1080/00397911.2019.1601225
日期:2019.5.19
novel and efficient protocol for the synthesis of pyrrolidinones using catalytic loading of 1,1'-butylenebis(3-sulfo-3H-imidazol-1-ium) hydrogen sulfate as a recyclable Brönsted acid ionic liquid through ball milling process at room temperature undersolvent-freeconditions. The developed method provides good to excellent yields of various pyrrolidinones in environmentally friendly conditions. Furthermore
Synthesis of pyrrolidinone derivatives from aniline, an aldehyde and diethyl acetylenedicarboxylate in an ethanolic citric acid solution under ultrasound irradiation
In this study, we reported a simple and efficient route for the one-pot sonochemical synthesis of substituted 3-pyrrolin-2-ones by citric acid as an additive.