Results 51 to 60 of about 51,441 (193)

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

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

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

Interaction of Copper(II) Complexes of Bidentate Benzaldehyde Nicotinic Acid Hydrazones with BSA: Spectrofluorimetric and Molecular Docking Approach

, 2023
Adnan Zahirović, Irnesa Osmanković, Amar Osmanović, Aleksandar Višnjevac, Amina Magoda, Selma Hadžalić, Emira Kahrović   +6 more
openalex   +2 more sources

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  

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

Synthesis and Antiviral Bioactivities of α-Aminophosphonates Containing Alkoxyethyl Moieties

Molecules, 2006
A simple, efficient, and general method has been developed for the synthesis ofvarious α-aminophosphonate derivatives 4a-4l by treatment of substituted benzaldehydes andaniline with bis(2-methoxyethyl)- or bis(2-ethoxyethyl) phosphite under ...
Zhuo Chen, Linhong Jin, Guiping Ouyang, Ping Lu, Deyu Hu, Wei Xue, Song Yang, Gangfang Xu, Baoan Song, Kai Yan, Yingshu Xu   +10 more
doaj   +1 more source

Synthesis and Conformational Assignment of N-(E)-Stilbenyloxymethylenecarbonyl-Substituted Hydrazones of Acetone and o-(m- and p-) Chloro- (nitro-) benzaldehydes by Means of and NMR Spectroscopy

Journal of Spectroscopy, 2013
Eighteen new N-(E)-stilbenyloxyalkylcarbonyl-substituted hydrazones of ortho- (meta- and para-) chloro- (nitro-) benzaldehydes 1–18 and two analogous hydrazones of acetone 19-20 were prepared.
Przemysław Patorski, Elżbieta Wyrzykiewicz, Grażyna Bartkowiak   +2 more
doaj   +1 more source

Oxidative esterification of aldehydes with alcohols using imidazolium perrhenate

Journal of Saudi Chemical Society, 2017
Four imidazolium perrhenates were synthesized, characterized and used as efficient catalysts for the oxidative esterification of benzaldehydes with alcohols.
Ruixia Xie, Xin Wang, Jingyun Wang, Jinxin Ye, Mingdong Zhou, Shuliang Zang   +5 more
doaj   +1 more source

Synthesis of diverse dihydropyrimidine-related scaffolds by fluorous benzaldehyde-based Biginelli reaction and post-condensation modifications

Beilstein Journal of Organic Chemistry, 2011
Dihydropyrimidinones and dihydropyrimidinethiones generated from the Biginelli reactions of perfluorooctanesulfonyl-attached benzaldehydes are used as common intermediates for post-condensation modifications such as cycloaddition, Liebeskind–Srogl ...
Bruno Piqani, Wei Zhang
doaj   +1 more source