Results 91 to 100 of about 19,839 (247)
A Simple Divergence from Asymmetric Cyclopropane to Lactone Annulation
A Simple Divergence from Asymmetric Cyclopropane to Lactone ...
Shinji Tanimori (2041681) +2 more
core +1 more source
The continuing significance of chiral agrochemicals
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
Background Cyclopropane fatty acids (CPA) have been found in certain gymnosperms, Malvales, Litchi and other Sapindales. The presence of their unique strained ring structures confers physical and chemical properties characteristic of unsaturated fatty ...
Rawat Richa, Yu Xiao-Hong, Shanklin John
doaj +1 more source
Five Decades of Dispute: A Triptych. Roald Hoffmann
This article examines the historical Corey–Woodward controversy through Roald Hoffmann's personal perspective, completing a triptych on the prolonged dispute. Drawing on archival records, contemporaneous correspondence, and extensive interviews, it reconstructs Hoffmann's interactions with Corey and Woodward from the 1960s onward.
Jeffrey I. Seeman
wiley +1 more source
Oxaziridines: Versatile Reagents in Modern Organic Synthesis
Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra +2 more
wiley +1 more source
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openaire +2 more sources
2,3-Disubstituted cyclopropane-1-carbonitriles were efficiently formed via a selective decarboxylation reaction of substituted 2-aroyl-3-aryl-1-cyano-cyclopropane-1-carboxylates in up to 92% yield.
Lizhong Wang +4 more
core +1 more source
This review offers a contemporary overview of metal‐catalyzed benzannulation (2018–present) encompassing transition, main‐group, post‐transition, and rare‐earth‐metal catalysts. It systematically highlights catalyst design, mechanistic insights, stereo‐ and regioselectivity, and synthetic applications toward aromatic and heteroaromatic scaffolds, while
Sana Jamshaid +5 more
wiley +1 more source
Synthesis of Aminocyclopropanes by Redox‐Neutral Aminoalkylation
Aminocyclopropane synthesis by hydroaminoalkylation utilizing cheap, readily available starting materials is presented, offering orthogonality to commonly used methods and allowing broad functional‐group tolerance. Solvent‐mediated conditions enable the reaction of a pre‐formed hemiaminal with alkenes and alkynes.
Gwyndaf A. Oliver +6 more
wiley +1 more source
A strategy to replace the ethylamine side chain of 2,5-dimethoxy-4-iodoamphetamine (DOI, 1a), and 2,5-dimethoxy-4-bromoamphetamine (DOB, 1b) with a cyclopropylamine moiety was successful in leading to compounds with high affinity at the 5-HT2 family of ...
Adam Pigott +5 more
doaj +1 more source

