Results 21 to 30 of about 47,767 (156)

A simple salt mediated electrooxidative method for the synthesis of benzaldehydes from benzyl alcohols

, 2022
A mild and efficient approach for the electrochemical conversion of benzyl alcohols to benzaldehydes is reported in homogeneous medium using Carbon/Stainless Steel electrodes and NaCl as mediator with H2SO4 as supporting electrolyte. To achieve excellent
D. Gopi (1831855), V. Sathya (13017418), S. Sambathkumar (13017424), R. Jagatheesan (13017421)   +3 more
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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

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

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

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

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
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Electrophilic fluorinatíon of ethers and deactivated benzene derivatives [PDF]

, 2005
Chapter 1 - Chapter 1 provides a literature review of the relevant topics for this thesis in organofluorine chemistry: effect of fluorine as a substituent on the molecule, synthesis of C-F bond from C-H bond using electrophilic reagents with discussions ...
Trmčić, Jelena
core  

Parachor of Benzaldehydes and Acetophenones

, 1965
The parachors. of substituted benzaldehydes and acetophenones have been measured in benzene and methanol mad the validity of Hammick and Andrew's equation is confirmed.
S. H. Dandegaonker, S. G. Shet
core   +1 more source