Results 51 to 60 of about 10,845 (167)

Metal‐Free Electrophilic Borylative Cyclizations of Alkynes

open access: yesThe Chemical Record, EarlyView.
Metal‐free borylative cyclizations based on electrophilic alkyne activation by boron Lewis acids provide efficient access to borylated hetero‐ and carbocycles. Early studies using B(C6F5)3 displayed limited scope and application, whereas recent ClBcat‐ and BCl3‐based methods enable mild CB and CC/CX bond formation for the synthesis of cycles ...
Jaime Mateos‐Gil   +3 more
wiley   +1 more source

2-(Methoxymethoxy)-1-(4-oxobicyclo[3.1.0]hexan-1-yl)ethyl 4-nitrobenzoate

open access: yesActa Crystallographica Section E, 2008
In the title compound, C17H19NO7, the cyclopentane ring is in an envelope conformation in which the methylene group forming the flap is cis to the cyclopropane group.
Jing Li   +2 more
doaj   +1 more source

Characteristics of fungicide resistance in Asian soybean rust (Phakopsora pachyrhizi) in Paraguay for 2022–2023: insights from genetic mutations and molecular dynamics simulations

open access: yesPest Management Science, Volume 82, Issue 4, Page 3116-3126, April 2026.
Phakopsora pachyrhizi in Paraguay showed diverse resistance to DMI, SDHI, and QoI fungicides at both regional and intra‐field levels, likely driven by target mutation genes. Abstract BACKGROUND Phakopsora pachyrhizi, the causative agent of Asian soybean rust, poses a major threat to soybean production in South America. The rising incidence of fungicide
Ryusuke Hagihara   +5 more
wiley   +1 more source

(E)-3-(2-Chloro-3,3,3-trifluoroprop-1-enyl)-N-(3-methoxyphenyl)-2,2-dimethylcyclopropanecarboxamide

open access: yesActa Crystallographica Section E, 2008
The title compound, C16H17ClF3NO2, was synthesized from 3-[(E)-2-chloro-3,3,3-trifluoroprop-1-enyl]-2,2-dimethylcyclopropanecarboxylic acid and 3-methoxybenzenamine.
Fan-Yong Yan, Dong-Qing Liu
doaj   +1 more source

Methyl 2-[2-((Z)-{1-trans-[2-(4-fluoro-3-methylphenyl)-2-methylcyclopropyl]ethylidene}aminooxymethyl)phenyl]-2-[(E)-methoxyimino]acetate

open access: yesActa Crystallographica Section E, 2009
The title compound, C24H27FN2O4, is an important intermediate in the synthesis of fungicidal strobilurin-type compounds. In the crystal structure, the oxime bond attached to the cyclopropane ring adopts a Z configuration, while the oxime bond attached to
Chunfeng Song   +3 more
doaj   +1 more source

Phospholipids of Clostridium butyricum. IV. Analysis of the positional isomers of monounsaturated and cyclopropane fatty acids and alk-1′-enyl ethers by capillary column chromatography

open access: yesJournal of Lipid Research, 1971
The positional isomers of the cyclopropane fatty acids of Clostridium butyricum phospholipids have been analyzed by capillary column gas–liquid chromatography. Greater than 95% of the methylenehexadecanoic acids was the 9,10 isomer. On the other hand, 60–
HOWARD GOLDFINE, CHARLES PANOS
doaj   +1 more source

Light‐Induced Reactions of Small‐Membered Cyclic Carbonyl Compounds

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 10, 9 March 2026.
This review highlights recent advances in the synthesis and photochemical reactivity of cyclopropenone and cyclobutenedione. These compounds undergo photolysis upon direct excitation, and in some cases, through indirect excitation by photocatalysts. The resulting photogenerated species exhibit unique reactivity profiles that are strongly influenced by ...
Kenji Mishiro
wiley   +1 more source

Alpha‐Ester Aryl Diazirines: Low‐Temperature Carbene Progenitors for Materials Applications

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 5, 3 March 2026.
A synthetic route to α‐ester aryl diazirines is established. The products are shown to have low activation temperatures, and to form stabilized singlet carbenes, resulting in high‐yielding C–H insertion to unactivated aliphatic bonds. Applications in materials science and tissue adhesion are proposed.
Kate Andersen   +6 more
wiley   +1 more source

Hydrocarbons as Proton Receptors and Evidences of Unconventional and Unusual π···H, p-π···H and C···H Hydrogen Bonds

open access: yesOrbital: The Electronic Journal of Chemistry, 2019
In this current work, a brief historical narrative of the most popular theories that decisively aid in the comprehension of the hydrogen bond formation is presented.
Boaz Galdino de Oliveira
doaj  

SYNTHESIS, LSD1 INHIBITORY ACTIVITY, AND LSD1 BINDING MODEL OF OPTICALLY PURE LYSINE-PCPA CONJUGATES

open access: yesComputational and Structural Biotechnology Journal, 2014
Compounds that inhibit the catalytic function of lysine-specific demethylase 1 (LSD1) are interesting as therapeutic agents. Recently, we identified three lysine-phenylcyclopropylamine conjugates, NCD18, NCD25, and NCD41, which are potent LSD1 ...
Yukihiro Itoh   +4 more
doaj   +1 more source

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