Yawen Guo

ORCID: 0000-0003-2616-2393
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About
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Research Areas
  • Radical Photochemical Reactions
  • Sulfur-Based Synthesis Techniques
  • Oxidative Organic Chemistry Reactions
  • Catalytic C–H Functionalization Methods
  • Conducting polymers and applications
  • Organic Electronics and Photovoltaics
  • Perovskite Materials and Applications
  • Cyclopropane Reaction Mechanisms
  • Fluorine in Organic Chemistry
  • Synthesis and Catalytic Reactions

Beijing Normal University
2022-2025

Various β-nitro ketones, including those bearing a β-tertiary carbon, were prepared from geminal bromonitroalkanes and trimethylsilyl enol ethers of broad range ketones by visible light photoredox catalysis, which then easily converted into β-amino 1,3-amino alcohols, α,β-unsaturated β-cyano γ-nitro ketones.

10.1039/d1cc06529g article EN Chemical Communications 2022-01-01

CuI-catalyzed regio- and stereoselective dehalogenative ring-opening trifluoromethylations of geminal dibromo- or dichlorocyclopropanes monobromocyclopropanes delivered stereodefined trisubstituted disubstituted ethylenes bearing a CH2CF3 group in good yields. Purple light-promoted reductive monodebromination gem-dibromocyclopropanes was also developed.

10.1039/d5cc00479a article EN Chemical Communications 2025-01-01

Abstract The cathode interface material is pivotal for achieving excellent photovoltaic performance and device stability in organic solar cells (OSCs). However, currently, few materials can simultaneously satisfy multiple criteria such as low cost, high efficiency, insensitivity to film thickness, good stability. To address this challenge, a novel perylene diimide (PDI) derivative, P‐C3T designed synthesized, by incorporating stable free radical unit TEMPO polar quaternary ammonium salt side...

10.1002/adfm.202416356 article EN Advanced Functional Materials 2024-12-15

3-Oxazolin-5-ones are precursors of nitrile ylides and represent valuable 1,3-dipoles for constructing cyclic imines or pyrrole compounds. Harnessing the power photocatalysis, we accomplished a straightforward synthesis 3-oxazolin-5-ones from redox-active esters secondary nitro Visible light-induced nondecarboxylative coupling ester, aldol condensation, subsequent visible N-oxide deoxygenation were within 2 h. The reaction mechanism was supported by experimental data DFT calculations.

10.1021/acs.orglett.3c00469 article EN Organic Letters 2023-03-21

A mild and efficient coupling method concerning the reactions of gem-bromonitroalkanes with α,α-diaryl allyl alcohol trimethylsilyl ethers was reported. cascade consisting visible-light-induced generation an α-nitroalkyl radical a subsequent neophyl-type rearrangement key to realize reactions. Structurally diverse α-aryl-γ-nitro ketones, especially those bearing nitrocyclobutyl structure, were prepared in moderate high yields, which could be converted into spirocyclic nitrones imines.

10.1021/acs.joc.3c00343 article EN The Journal of Organic Chemistry 2023-03-27
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