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Published in 2017 at "Journal of Industrial and Engineering Chemistry"
DOI: 10.1016/j.jiec.2017.05.028
Abstract: Abstract Iron-organic framework Fe3O(BPDC)3 was synthesized, and subsequently utilized as an productive heterogeneous catalyst for the cyclization reaction of N,N-dialkylanilines with ketoxime carboxylates to produce aryl-substituted pyridines. This iron-organic framework catalyst demonstrated remarkably higher catalytic…
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Keywords:
substituted pyridines;
aryl substituted;
cyclization;
synthesis aryl ... See more keywords
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Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c00124
Abstract: Diverse substituted pyridines and pyrimidines with high selectivity were obtained using a concise and efficient protocol developed herein. The reaction proceeds via metal-free cascade annulation of isopropene derivatives. Using isopropene derivatives as C3 synthons, NH4I…
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Keywords:
substituted pyridines;
cascade annulation;
annulation isopropene;
isopropene derivatives ... See more keywords
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Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c00773
Abstract: Iridium-catalyzed C–H borylation of CF3-substituted pyridines is described in this paper. The boronic ester group can be installed on the α, β, or γ position of pyridine by an appropriate substitution pattern. Sterically governed regioselectivity…
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Keywords:
substituted pyridines;
iridium catalyzed;
cf3 substituted;
catalyzed borylation ... See more keywords
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Published in 2020 at "Organic chemistry frontiers"
DOI: 10.1039/c9qo01333d
Abstract: A silver-catalyzed hetero-dimerization of various vinyl isocyanides with isocyanoacetamides has been developed. This multistep domino reaction provides a facile protocol for the expedient synthesis of fully substituted pyridines in a single operation from readily available…
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Keywords:
silver catalyzed;
fully substituted;
substituted pyridines;
synthesis fully ... See more keywords
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Published in 2022 at "RSC Advances"
DOI: 10.1039/d2ra01390h
Abstract: The silver(i) and iodine(i) complexes of the 2-substituted pyridines 2-(diphenylmethyl)pyridine (1) and 2-(1,1-diphenylethyl)pyridine (2), along with their potential protonated side products, were synthesised to investigate the steric limitations of iodine(i) complex formation. The complexes were…
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Keywords:
incorporating sterically;
iodine complexes;
complexes incorporating;
substituted pyridines ... See more keywords
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Published in 2022 at "RSC Advances"
DOI: 10.1039/d2ra03875g
Abstract: An efficient method for the synthesis of multi-substituted pyridines from β-aryl-substituted α,β-unsaturated oxime ethers and alkenes via Pd-catalyzed C–H activation has been developed. The method, using Pd(OAc)2 and a sterically hindered pyridine ligand, provides access…
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Keywords:
substituted pyridines;
palladium catalyzed;
synthesis;
oxime ethers ... See more keywords
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Published in 2018 at "Synthetic Communications"
DOI: 10.1080/00397911.2018.1463545
Abstract: Abstract A first example of environmentally benign zinc complex catalyzed one-pot four-component reaction between malononitrile, ketone, ammonium acetate and aromatic aldehyde for the facile synthesis of fully substituted pyridines just within 2 min in environmentally friendly…
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Keywords:
fully substituted;
substituted pyridines;
facile synthesis;
synthesis fully ... See more keywords
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Published in 2021 at "Canadian Journal of Chemistry"
DOI: 10.1139/cjc-2020-0510
Abstract: A series of 2- and 3-pyridyl sulfonate and tosylate esters of primary and secondary alcohols were synthesized and evaluated in the bromination reaction with MgBr2·Et2O. The greater coordinating ability of the 2-pyridyl sulfonate esters accounted…
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Keywords:
sulfonate esters;
divergent reactivities;
esters exceptionally;
reactivities pyridyl ... See more keywords