Results 21 to 30 of about 46,343 (254)

4-Hydroxybenzoic Acid-Based Hydrazide–Hydrazones as Potent Growth Inhibition Agents of Laccase-Producing Phytopathogenic Fungi That Are Useful in the Protection of Oilseed Crops

Molecules
The research on new compounds against plant pathogens is still socially and economically important. It results from the increasing resistance of pests to plant protection products and the need to maintain high yields of crops, particularly oilseed crops ...
Halina Maniak, Konrad Matyja, Elżbieta Pląskowska, Joanna Jarosz, Paulina Majewska, Joanna Wietrzyk, Hanna Gołębiowska, Anna Trusek, Mirosław Giurg   +8 more
doaj   +1 more source

Solvent‐free synthesis, spectral correlations and antimicrobial activities of some 3,4‐ dimethoxy chalcones [PDF]

QScience Connect, 2012
Background: The aim of this study was to synthesise some substituted styryl 3,4-dimethoxy phenyl ketones using solvent-free SiO2-H2SO4 catalyzed aldol condensation between 3,4- dimethoxy acetophenone and substituted benzaldehydes under microwave ...
V. Mala, K. Sathiyamoorthi, SP Sakthinathan, D. Kamalakkannan, R. Suresh, G. Vanangamudi, G. Thirunarayanan   +6 more
doaj   +1 more source

Bio-inspired iron-catalyzed oxidation of alkylarenes enables late-stage oxidation of complex methylarenes to arylaldehydes

Nature Communications, 2019
Oxidation of toluenes to benzaldehydes is usually accompanied by overoxidation products. Here, the authors report an iron-catalysed aerobic oxidation of methylarenes to benzaldehydes with high yields and selectivities, even in presence of boronic acid ...
Penghui Hu, Mingxi Tan, Lu Cheng, Hongyuan Zhao, Rui Feng, Wei-Jin Gu, Wei Han   +6 more
doaj   +1 more source

Easy access to medium-sized lactones through metal carbene migratory insertion enabled 1,4-palladium shift

Nature Communications, 2020
Transannular construction of medium-sized lactones is entropically unfavoured. Herein, the authors describe a strategy for valuable medium-sized lactone synthesis from available benzaldehydes by selective C-H bond functionalization via palladium carbene ...
Yinghua Yu, Pushkin Chakraborty, Jinshuai Song, Lei Zhu, Chunsen Li, Xueliang Huang   +5 more
doaj   +1 more source

The green Knoevenagel condensation: solvent-free condensation of benzaldehydes

Green Chemistry Letters and Reviews, 2017
This paper presents a novel, green Knoevenagel procedure for the chemical transformation of benzaldehydes into their corresponding α,β-unsaturated acids.
Jack van Schijndel, Luiz Alberto Canalle, Dennis Molendijk, Jan Meuldijk   +3 more
doaj   +1 more source

Syn-selective silicon Mukaiyama-type aldol reactions of (pentafluoro-λ6-sulfanyl)acetic acid esters with aldehydes

Beilstein Journal of Organic Chemistry, 2018
Aldol reactions belong to the most frequently used C–C bond forming transformations utilized particularly for the construction of complex structures. The selectivity of these reactions depends on the geometry of the intermediate enolates.
Anna-Lena Dreier, Andrej V. Matsnev, Joseph S. Thrasher, Günter Haufe   +3 more
doaj   +1 more source

A Facile Solvent Free Claisen-Schmidt Reaction: Synthesis of α,α′-bis-(Substituted-benzylidene)cycloalkanones and α,α′-bis-(Substituted-alkylidene)cycloalkanones

Molecules, 2012
Solvent-free Claisen-Schmidt reactions of cycloalkanones with various substituted benzaldehydes (aryl aldehydes) using solid NaOH (20 mol%) and applying a grinding technique were studied.
Yurngdong Jahng, A. F. M. Motiur Rahman, Roushown Ali, Adnan A. Kadi   +3 more
doaj   +1 more source

Friedel–Crafts reaction of indoles for (3-indolyl)methyl ethers under basic condition: Application in unsymmetrical bis(indolyl)methanes

Results in Chemistry, 2021
An efficient process to prepare (3-indolyl)methyl ethers from various indoles and benzaldehydes under basic conditions was reported. The effects of bases, solvents were investigated.
Zubiao Zheng, Daoxin Zha, Peng Cui, Huan Zhang, Changjiang Li, Jianjun Shi, Bingbing Han   +6 more
doaj   +1 more source

Time‐restricted feeding prior to Mycobacterium tuberculosis infection reduces tissue CD4+ T cells with limited impact on bacterial clearance

FEBS Open Bio, EarlyView.
Time‐restricted feeding (TRF) in mice increased liver fatty acid oxidation and decreased fatty acid biosynthesis. These alterations persisted when TRF was discontinued and the host was infected with Mycobacterium tuberculosis. Pre‐exposure to TRF did not alter tissue (lung and spleen) mycobacterial burden but significantly reduced CD3+ T cells in lungs
Ashish Gupta, Nidhi Yadav, Subhasmita Das, R. Rajendra Kumar Reddy, Nupur Sharma, Amol Ratnakar Suryawanshi, Jaswinder Singh Maras, Ranjan Kumar Nanda   +7 more
wiley   +1 more source

Degradation of chlorinated benzaldehydes in aqueous solutions by UV-irradiation

International Journal of Photoenergy, 2002
Photoinduced degradation of chlorinated benzaldehydes was investigated using UV light with λ = 253.7 nm in aerated aqueous solutions. Substrate degradation rate as expressed by first order reaction kinetics revealed rate constants, k; 7.45×10−3 min-1, 3 ...
Miray Bekbölet, Nikola Getoff
doaj   +1 more source