Results 61 to 70 of about 47,767 (156)

Microwave-Assisted Synthesis of Some 3,5-Arylated 2-Pyrazolines

Molecules, 2003
Condensation of 2-acetylnaphthalene with benzaldehydes under microwave irradiation affords chalcones which undergo facile and clean cyclizations with hydrazines RNHNH2 (R= H, Ph, Ac) to afford 3,5-arylated 2-pyrazolines in quantitative yields, also under
Hassan Ghasemnejad, Davood Azarifar
doaj   +1 more source

CuBr2-catalyzed alkylation of furans with benzyl alcohols and benzaldehydes. Domino reactions including this alkylation as a key step

, 2020
A CuBr2-catalyzed alkylation of furans with a broad scope of benzyl alcohols and benzaldehydes is reported. Reaction proceeds efficiently under mild reaction conditions requiring no inert atmosphere or other precautions.
Hall C.J.J., Price D.R., Kekhvaeva A.E., Uchuskin M.G., Makarov A.S., Trushkov I.V.   +5 more
core   +2 more sources

N-heterocyclic carbene catalyzed additions of 3-trimethylsilyl propiolate to aldehydes

Journal of Saudi Chemical Society, 2016
A N-heterocyclic carbene (NHC) catalyzed addition reaction of 3-trimethylsilyl propiolate with aldehydes has been developed. Under the catalysis of 2 mol% NHCs, benzaldehyde, furfural, β-naphthaldehyde, meta- and para-substituted aromatic aldehydes ...
Guang-Fen Du, Xiao-Lei Zou, Bin Dai, Lin He   +3 more
doaj   +1 more source

An Efficient One-Pot Multicomponent Synthesis of 4-Aza-Podophyllotoxin Derivatives in Ionic Liquid

Journal of Chemistry, 2013
A simple, green, and efficient procedure for the synthesis of 4-aza-podophyllotoxin derivatives by using a one-pot three-component reaction of benzaldehydes, 1,3-cyclohexanediones, and anilinolactones in the presence of catalytic amount of alum in 1 ...
Hossein Naeimi, Zahra Rashid, Amir Hassan Zarnani, Ramin Ghahremanzadeh   +3 more
doaj   +1 more source

A Study on the Condensation Reaction of 4-Amino-3,5-dimethyl-1,2,4-triazole with Benzaldehydes: Structure and Spectroscopic Properties of Some New Stable Hemiaminals

Molecules, 2015
Studies on the stable hemiaminals and Schiff bases formation in the reaction of substituted benzaldehydes with primary 3,5-dimethyl-1,2,4-triazole 4-amine were carried out under neutral conditions.
Katarzyna Wajda-Hermanowicz, Damian Pieniążczak, Aleksandra Zatajska, Robert Wróbel, Krzysztof Drabent, Zbigniew Ciunik   +5 more
doaj   +1 more source

Dipole moments and conformations of some substituted benzaldehydes

, 1974
Experimental electric dipole moments are reported for a number of substituted benzaldehydes (o-, m-, and p-XC6H4CHO; X = NO2, CN, F, Br) as solutes in carbon tetrachloride or benzene at 25 C.
GLD Ritchie, AJ Williams, EAW Bruce
core   +1 more source

Synthesis and characterization of a novel series of meso (nitrophenyl) and meso (carboxyphenyl) substituted porphyrins

Journal of the Brazilian Chemical Society, 2000
The anionic 5,10,15-tris(4-carboxyphenyl), 20-mono(2-nitrophenyl) porphyrin (1), 5,10(or 15)-bis(4-carboxyphenyl), 15(or 10),20-bis(2-nitrophenyl)porphyrin (2) and 5-mono(4-carboxyphenyl), 10,15,20-tris(2-nitrophenyl)porphyrin (3) were sinthesized ...
Schiavon Marco A., Iwamoto Lidia S., Ferreira Antônio G., Iamamoto Yassuko, Zanoni Maria V. B., Assis Marilda das D.   +5 more
doaj  

Structure–Reactivity Correlation in the Oxidation of Substituted Benzaldehydes by Pyridinium Bromochromate

, 2010
Oxidation of 36 monosubstituted benzaldehydes by pyridinium bromochromate (PBC) in dimethyl sulfoxide (DMSO), leads to the formation of corresponding benzoic acids. The reaction is first order with respect to both PBC and aldehydes.
P. Mishra, Pradeep K. Sharma, D. Yajurvedi, P. Purohit, K. Vadera   +4 more
core   +1 more source

A mild and efficient Dakin reaction mediated by lipase

Green Chemistry Letters and Reviews, 2017
We have developed a novel lipase-mediated method to realize the Dakin reaction. A wide range of hydroxylated benzaldehydes could be oxidized with high yields (from 90% to 97%) under mild reaction conditions.
Zhi Wang, Xiao Chen, Chunyu Wang, Liu Zhang, Fengxi Li, Weian Zhang, Peng Chen, Lei Wang   +7 more
doaj   +1 more source

Dual action of benzaldehydes: Inhibiting quorum sensing and enhancing antibiotic efficacy for controlling Pseudomonas aeruginosa biofilms

Quorum sensing (QS) has a central role in biofilm lifestyle and antimicrobial resistance, and disrupting these signaling pathways is a promising strategy to control bacterial pathogenicity and virulence.
Fernanda Borges, Simoes, M, Leitao, MM, Simões M, Anabela Borges, Vieira, TF, Sousa, SF   +6 more
core   +1 more source