Results 51 to 60 of about 5,806 (187)
Nature Communications, 2018 Synthesis of cyclopropanes bearing vicinal all-carbon quaternary stereocenters poses synthetic challenges. Here, the authors report an intramolecular radical cyclopropanation with a copper/amine cooperative catalytic system for the efficient construction
Liu Ye +5 more
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Synthesis of organic liquid crystals containing selectively fluorinated cyclopropanes
Beilstein Journal of Organic Chemistry, 2020 This paper describes the synthesis of a series of organic liquid crystals (LCs) containing selectively fluorinated cyclopropanes at their termini. The syntheses used difluorocarbene additions to olefin precursors, an approach which proved straightforward
Zeguo Fang +5 more
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The continuing significance of chiral agrochemicals
Pest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley +1 more source
Advanced Science(Difluoromethylated cyclopropane represents an important motif, which is widely found in bioactive and functional molecules. Despite significant progress in modern chemistry, the atom‐economic and enantioselective synthesis of difluoromethylated ...
Chuntao Wang +3 more
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The Chemical Record, EarlyView.This publication describes how R. B. Woodward and Roald Hoffmann crafted their masterpiece publications. Illustrations include Woodward's first draft of the famous “Violations There are none. Nor can violations be expected of so fundamental a principle of maximum bonding.” Original but discarded text shows the stepwise paths toward the W‐H masterpieces.
Jeffrey I. Seeman
wiley +1 more source
A unique Pd-catalysed Heck arylation as a remote trigger for cyclopropane selective ring-opening
Nature Communications, 2017 Functionalizing multiple, distant sites across a molecule is a challenge. Here the authors report a remote functionalization strategy, whereby an initial Heck reaction leads to chain-walking of palladium across a molecule, ring-opening cyclopropanes ...
Sukhdev Singh +3 more
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Journal of Physical Organic Chemistry, Volume 39, Issue 9, September 2026.Physical organic chemistry transforms photoaffinity labeling from empirical photochemistry into rational probe design. By measuring reactive‐intermediate lifetimes, pathways, and selectivity, Platz's legacy connects carbene and nitrene mechanisms to modern chemoproteomics, enabling more precise protein labeling and drug‐discovery maps.
Bin Yang, Jin Wang
wiley +1 more source
Nature Communications, 2016 Furans are attractive staring materials in organic chemistry, due to the ease of functionalisation and sourcing from renewable feedstocks. Here the authors show the ring opening of furans to silane intermediates, followed by further conversion to ...
Chinmoy K. Hazra +3 more
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Asymmetric one-pot synthesis of cyclopropanes
Macedonian Journal of Chemistry and Chemical Engineering, 2016 Cycloaddition of the diazoalkanes to electron-deficient olefins (in situ) affords polysubstituted cyclopropanes in high yields (up to 85%). Deprotection of the ketal protecting group provided water-soluble cyclopropane-bearing carbohydrate in good yields.
Naoufel Ben Hamadi +2 more
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New Phytologist, Volume 251, Issue 5, Page 2867-2887, September 2026.MtSymCRK–MtGRF8‐14‐3‐3a, e, h and i functional model in R‐108 nodules. Summary In Medicago littoralis R‐108, Symbiotic CYSTEINE‐RICH RECEPTOR‐LIKE KINASE (MtSymCRK) is required to prevent defense reactions in symbiotic nodules during chronic infection.
Chaoyan Yin +9 more
wiley +1 more source