Reactivity of Pnictaalumenes towards 1,3‐Dipole Molecules
Angewandte Chemie International Edition, Accepted Article.Alkynes undergo 1,3‐dipolar cyclisation reactions with organic azides giving 1,2,3‐triazoles. Pnictaalumenes RPn=AlRˈ are the isoelectronic congeners of alkynes, hence a similar reactivity towards 1,3‐dipole molecules is expected. Herein, we report the reactions of DippTerPn=AlCp* (DippTer = 2,6‑(2,6‐iPr2C6H3)‐C6H3, Cp* = [Me5C5]−, Pn = P, As) towards ...
Tim Wellnitz +7 more
wiley +1 more source
Orthogonal, metal-free surface modification by strain-promoted azide–alkyne and nitrile oxide–alkene/alkyne cycloadditions [PDF]
, 2012 In this article we present a fast and efficient methodology for biochemical surface patterning under extremely mild conditions. Micropatterned azide/benzaldoxime-surfaces were prepared by microcontact printing of a heterobifunctional cyclooctyne oxime ...
Arlinghaus, Heinrich F +6 more
core +1 more source
Molecules, 2020 Pyridinium ylides are well recognized as dipoles for cycloaddition reactions. In its turn, the microwave-assisted interaction of N-(cyanomethyl)-2-alkylpyridinium salts with enaminones unexpectedly proceeds as a domino sequence of cycloisomerization and ...
Ekaterina A. Sokolova +6 more
doaj +1 more source
Carbon nanobuds based on carbon nanotube caps: A first-principles study [PDF]
, 2015 Based on density functional theory calculations, we here show that the formation of a fullerene C$_{60}$ carbon "nanobud" (CNB) on carbon nanotube (CNT) caps is energetically more favorable than that on CNT sidewalls. The dominant CNB formation mode for CNT caps is found to be the [2+2] cycloaddition reaction as in the conventional CNT sidewall case ...
arxiv +1 more source
X=Y–ZH compounds as potential 1,3-dipoles. Part 64: Synthesis of highly substituted conformationally restricted and spiro nitropyrrolidines via Ag(I) catalysed azomethine ylide cycloadditions [PDF]
, 2008 1,3-Dipolar reactions of imines of both acyclic and cyclic α-amino esters with a range of nitroolefins using a combination of AgOAc or Ag2O with NEt3 are described.
Albert +51 more
core +1 more source
Reakcija benzo (b)tiofen 1,1-dioksida i benzonitril oksida [PDF]
, 2013 Reakcijama 1,3-dipolarne cikloadicije reagiraju dipol i dipolarofil uz nastanak peteročlanog prstena kao produkta. Oksidacijom benzo(b)tiofena, uz ledenu octenu kiselinu i vodikov peroksid, priređen je benzo(b)tiofen 1,1-dioksid, koji u 1,3-dipolarnim ...
Komar, Mario
core +3 more sources
Decarboxylation-Driven Double Annulations: Innovative Multi-Component Reaction Pathways
MoleculesA concerted five-component reaction strategy has been developed, featuring double [3+2] cycloadditions utilizing aspartic acid. This approach provides valuable insights into mechanistic pathways, allowing for the distinction between concerted and ...
Desheng Zhan +4 more
doaj +1 more source
A porphyrin-centred fullerene tetramer containing an N@C60 substituent [PDF]
Royal Society Open Science, 2018 An N@C60-containing C60 tetramer was synthesized by quadruple 1,3-dipolar cycloaddition (Prato) reaction. This molecule demonstrates the N@C60 qubit's ability to form covalently linked arrays.
Harry Macpherson +3 more
doaj +1 more source
Rotaxane‐Based Mechanochromic Mechanophore Enabled by Amide Bond Formation
Chemistry – An Asian Journal, EarlyView.This study demonstrates that a rotaxane mechanophore prepared through amide bond formation between succinimidyl ester and amine groups exhibits similar mechanoresponsive luminescence properties to the previous mechanophores synthesized via Huisgen cycloaddition between azide and terminal alkyne.
Yuto Yoshida, Yoshimitsu Sagara
wiley +1 more source
Explorations of an intramolecular route to pyrrolo[3,4-b]isoxazoles: an unexpected retro-Claisen reaction [PDF]
, 2013 Potential precursors have been prepared for intramolecular 1,3-dipolar cycloaddition to form a pyrrolo[3,4-b]isoxazole. The cycloaddition has not to date been accomplished, however an unexpected retro-Claisen reaction is ...
Ching-Man (Carole) Law (7165019) +2 more
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