One‐pot synthesis of polysubstituted pyrrolidinones using novel magnetic nanoparticles as an efficient and reusable catalyst
Sign Up to like & getrecommendations! Published in 2017 at "Applied Organometallic Chemistry"
DOI: 10.1002/aoc.3681
Abstract: 7-Aminonaphthalene-1,3-disulfonic acid-functionalized magnetic Fe3O4 nanoparticles efficiently catalyse the one-pot multi-component synthesis of substituted 3-pyrrolin-2-ones without using any other harmful organic reagents. High catalytic activity, ease of recovery, use of an external magnetic field and capability… read more here.
Keywords: synthesis polysubstituted; catalyst; pot synthesis; one pot ... See more keywords
Synthesis of Polysubstituted 3‐Methylisoquinolines through the 6π‐Electron Cyclization/Elimination of 1‐Azatrienes derived from 1,1‐Dimethylhydrazine
Sign Up to like & getrecommendations! Published in 2018 at "European Journal of Organic Chemistry"
DOI: 10.1002/ejoc.201801076
Abstract: Fil: Vargas Vargas, Didier Farley. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Rosario. Instituto de Quimica Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquimicas y Farmaceuticas. Instituto de Quimica… read more here.
Keywords: synthesis polysubstituted; methylisoquinolines electron; rosario; cyclization elimination ... See more keywords
Organocatalytic Cascade Knoevenagel–Michael Addition Reactions: Direct Synthesis of Polysubstituted 2-Amino-4H-Chromene Derivatives
Sign Up to like & getrecommendations! Published in 2020 at "Catalysis Letters"
DOI: 10.1007/s10562-019-03089-8
Abstract: In this report, we documented novel strategy for the synthesis of bioactive polysubstituted 2-amino-4H-chromine derivatives under a heterogeneous Al-MCM-41-LDH@APTES (ALAM) catalysis. A synthetic procedure is developed to prepare Al-MCM-41-LDH@APTES (ALAM) heterogeneous basic catalysts. Mesoporous Al-MCM-41… read more here.
Keywords: synthesis polysubstituted; michael addition; polysubstituted amino; addition reactions ... See more keywords
Synthesis of di- and trihydroxy proline derivatives from D-glycals: Application in the synthesis of polysubstituted pyrrolizidines and bioactive 1C-aryl/alkyl pyrrolidines.
Sign Up to like & getrecommendations! Published in 2019 at "Carbohydrate research"
DOI: 10.1016/j.carres.2019.02.004
Abstract: Six different types of O-benzyl protected proline derivatives have been synthesized from D-glycals and 2C-formyl-glycals. One of the di-O-benzyl protected proline derivatives has been utilized for the synthesis of polysubstituted pyrrolizidines via [3 + 2] cycloaddition in… read more here.
Keywords: synthesis polysubstituted; synthesis; proline derivatives; aryl alkyl ... See more keywords
DBU-promoted tandem Michael-addition/cyclization for the synthesis of polysubstituted pyrroles
Sign Up to like & getrecommendations! Published in 2019 at "Tetrahedron"
DOI: 10.1016/j.tet.2019.02.057
Abstract: Abstract An efficient and transition-metal-free method for the synthesis of the structurally diversified pyrroles is described. Various α,β-unsaturated ynones reacted with N-substituted ethyl glycine ethyl ester hydrochlorides in the presence of DBU to form the… read more here.
Keywords: synthesis; promoted tandem; polysubstituted pyrroles; synthesis polysubstituted ... See more keywords
Synthesis of Polysubstituted Germoles and Benzogermoles Using a Substoichiometric Amount of Diisobutylaluminum Hydride.
Sign Up to like & getrecommendations! Published in 2021 at "Organic letters"
DOI: 10.1021/acs.orglett.1c01314
Abstract: We developed a synthetic route to unsymmetrically polysubstituted germoles bearing different substituents from 1-hydrogermyl-4-silyl-1,3-enynes. The reaction proceeded with 0.5 equiv of diisobutylaluminum hydride. Various 2-silylgermoles including benzogermoles were obtained in good to excellent yields. 2-Germylbenzogermoles… read more here.
Keywords: diisobutylaluminum hydride; synthesis polysubstituted; benzogermoles using; polysubstituted germoles ... See more keywords
Phenanthrenequinone-Sensitized Photocatalytic Synthesis of Polysubstituted Quinolines from 2-Vinylarylimines.
Sign Up to like & getrecommendations! Published in 2021 at "Organic letters"
DOI: 10.1021/acs.orglett.1c03934
Abstract: Visible-light-excited 9,10-phenanthrenequinone (PQ*) was used as a photocatalyst for the synthesis of polysubstituted quinolines via the electrocyclization of 2-vinylarylimines. Up to quantitative yields of 2,4-disubstituted quinolines were received after 1 h of excitation with blue… read more here.
Keywords: polysubstituted quinolines; synthesis polysubstituted; photocatalytic synthesis; sensitized photocatalytic ... See more keywords
A multicomponent two-step strategy for the synthesis of polysubstituted pyrrolo[3,2-c]pyridin-4-ones using a solid acid as a recyclable catalyst
Sign Up to like & getrecommendations! Published in 2019 at "Green Chemistry"
DOI: 10.1039/c9gc01120j
Abstract: A two-step strategy for the synthesis of polysubstituted pyrrolo[3,2-c]pyridin-4-ones using a solid acid as a recyclable catalyst. read more here.
Keywords: two step; strategy synthesis; polysubstituted pyrrolo; pyrrolo pyridin ... See more keywords
Microwave-assisted unprotected Sonogashira reaction in water for the synthesis of polysubstituted aromatic acetylene compounds
Sign Up to like & getrecommendations! Published in 2020 at "Green Chemistry"
DOI: 10.1039/c9gc04051j
Abstract: A microwave-assisted, efficient and rapid Sonogashira reaction was developed for the synthesis of polysubstituted aromatic alkynes. The reaction was made environmentally friendly and easy to perform by replacing the traditional amine solvents with water. The… read more here.
Keywords: synthesis polysubstituted; microwave assisted; reaction; sonogashira reaction ... See more keywords
Highly Selective One-Pot Synthesis of Polysubstituted Isoflavanes using Styryl Ethers and Electron-Withdrawing ortho-Quinone Methides Generated In Situ
Sign Up to like & getrecommendations! Published in 2018 at "Synlett"
DOI: 10.1055/s-0037-1611361
Abstract: A highly selective one-pot synthesis of polysubstituted isoflavanes has been developed. The reaction proceeds through the cycloaddition of methyl styryl ethers, derived from phenylacetaldehyde dimethyl acetals under acidic conditions, with electron-withdrawing ortho-quinone methides generated in… read more here.
Keywords: synthesis polysubstituted; selective one; highly selective; pot synthesis ... See more keywords
One-Pot Synthesis of Polysubstituted Imidazoles Based on Pd(OAc)2/Ce(SO4)2/Bi(NO3)3 Trimetallic Cascade of Decarboxylation/Wacker-Type Oxidation/Debus–Radziszewski Reaction
Sign Up to like & getrecommendations! Published in 2019 at "Synthesis"
DOI: 10.1055/s-0037-1611835
Abstract: A novel and highly efficient one-pot synthesis of polysubstituted imidazoles from α-hydroxyphenylacetic acids, diphenylacetylene, and amines has been achieved by Pd(OAc)2/Ce(SO4)2/Bi(NO3)3 trimetallic catalytic system. A series of control experiments showed that this overall reaction occurs… read more here.
Keywords: pot synthesis; reaction; one pot; polysubstituted imidazoles ... See more keywords