Photocatalytic Cycloaddition Reaction of Triarylphosphines with Alkynes Forming Cyclic Phosphonium Salts [PDF]
, 2021 Herein reported is a photocatalytic cycloaddition reaction of triarylphosphines with alkynes. Phosphonium salts of unique bicyclic structures are synthesized through a radical pathway under mild reaction conditions. The phosphonium salts are subjected to
Yusuke, Masuda +2 more
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The Synthesis of the Hydrogenated Thiophenes by [3+2] Cycloaddition Reaction of Thiocarbonyl Ylide
Журнал органічної та фармацевтичної хімії, 2023 Aim. To study the use of chloromethyl trimethylsilylmethyl sulfide as a precursor of thiocarbonyl ylide in [3+2] cycloaddition reaction to a number of α,β-unsaturated compounds and to establish the regularities of the reaction course.
Tymofii V. Rudenko, Vadim M. Timoshenko
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Ab initio study of the mechanism of forming a spiro-Si-heterocyclic ring compound involving Ge from H2Ge=Si: and acetaldehyde [PDF]
Journal of the Serbian Chemical Society, 2016 The H2Ge=Si: and its derivatives(X2Ge=Si:, X = H, Me, F, Cl, Br, Ph, Ar……) is a new species. Its cycloaddition reactions is a new area for the study of silylene chemistry.
Lu Xiuhui, Ming Jingjing
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Molecules, 2021 The molecular mechanism of the [3 + 2] cycloaddition reaction between C-arylnitrones and perfluoro 2-methylpent-2-ene was explored on the basis of DFT calculations. It was found that despite the polar nature of the intermolecular interactions, as well as
Katarzyna Mitka +3 more
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Oxidation-controlled, Strain-Promoted Tellurophene-Alkyne Cycloaddition (OSTAC): A Bioorthogonal Reaction for Fast and Selective Protein Conjugation [PDF]
, 2022 Noncanonical amino acids (ncAAs) bearing functional groups for bioorthogonal labelling are useful tools for the downstream analysis of nascent polypeptides.
Mark, Nitz, Yong, Jia Bu
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A Stepwise [4 + 3] Cycloaddition Reaction of the 1,3-Diphenyl-2-azaallyl Anion [PDF]
, 1993 The 1,3-diphenyl-2-azaallyl anion (1) undergoes [3 + 2] cycloaddition reactions with the s-cis-fixed 1,3-dienes 8-11. In contrast, 1,1,2,2,3,3-hexamethyl-4,5-bis(methylene)cyclopentane (7) reacts with 1 to give the [4 + 3] cycloadduct 13 and the linear 1,
Mayr, Herbert +2 more
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Cycloaddition Reactions of Heterophospholes
ChemInform, 2004 AbstractFor Abstract see ChemInform Abstract in Full Text.
Raj K. Bansal +2 more
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Synthesis of 1,4-Disubstituted Mono and Bis-triazolocarbo-acyclonucleoside Analogues of 9-(4-Hydroxybutyl)guanine by Cu(I)-Catalyzed Click Azide-Alkyne Cycloaddition [PDF]
, 2011 A series of novel mono-1,2,3-triazole and bis-1,2,3-triazole acyclonucleoside analogues of 9-(4-hydroxybutyl)guanine was prepared via copper(I)-catalyzed 1,3-dipolar cycloaddition of N-9 propargylpurine, N-1-propargylpyrimidines/as-triazine with the ...
Krim, Jamal +5 more
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Beilstein Journal of Organic Chemistry, 2022 Herein we report a method for the synthesis of 3,4,5-trisubstituted isoxazoles in water under mild basic conditions at room temperature via a [3 + 2]-cycloaddition of nitrile oxides and 1,3-diketones, β-ketoesters, or β-ketoamides.
Md Imran Hossain +3 more
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Unusual Structure-Energy Correlations in Intramolecular Diels–Alder Reaction Transition States [PDF]
, 2014 Detailed analysis of calculated data from an experimental/computational study of intramolecular furan Diels–Alder reactions has led to the unusual discovery that the mean contraction of the newly forming C-C σ-bonds from the transition state to the ...
Robert L. Rae +14 more
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