scholarly journals Unexpected Bisboronic Dicationic Acid Obtained from One‐Pot Condensation Reaction of 3‐Aminophenylboronic Acid and 2,6‐Pyridincarboxyaldehyde

2019 ◽  
Vol 4 (30) ◽  
pp. 8822-8828
Author(s):  
Arturo González‐Hernández ◽  
Jacobo Rivera‐Segura ◽  
Pascal G. Lacroix ◽  
Victor Barba
Keyword(s):  
Condensation Reaction ◽  
One Pot ◽  
One Pot Condensation ◽  
Aminophenylboronic Acid

Synthesis of energetic salts containing three heterocyclic anions by a one-pot condensation reaction

2019 ◽  
Vol 43 (48) ◽  
pp. 19069-19074
Author(s):  
Panpan Peng ◽  
Baoping Hu ◽  
Feipeng Lu ◽  
Yao Du ◽  
Chaofeng Zhao ◽  
...  
Keyword(s):  
Ammonium Salt ◽  
Condensation Reaction ◽  
One Pot ◽  
Ionic Salts ◽  
One Pot Condensation ◽  
Energetic Salts

Energetic ionic salts 1 and 2 containing three heterocyclic anions were prepared in a one-pot reaction using 1,3,5-benzenetricarboxaldehyde, aminoguanidine salts, and organic energetic salts (5-nitrotetrazole and 3,5-dinitro-1,2,4-triazole ammonium salt).

An efficient, one-pot three-component synthesis of 4H-thiazolo[3,2-a][1,3,5]triazin-6-one derivatives

2016 ◽  
Vol 22 (1) ◽  
pp. 43-47
Author(s):  
Mustafa T. Ubeid ◽  
Hamdy K. Thabet ◽  
Said A. El-Feky
Keyword(s):  
Ammonium Acetate ◽  
Thioglycolic Acid ◽  
Condensation Reaction ◽  
One Pot ◽  
Spectroscopic Analyses ◽  
One Pot Condensation

AbstractA simple and efficient protocol was established to synthesize thiazolo[3,2-a][1,3,5]triazin-6-ones via three-component one-pot condensation reaction of readily available thioglycolic acid or ethyl thioglycolate, aldehydes or ketones and dicyandiamide in the presence of ammonium acetate. All of the newly synthesized compounds were characterized by spectroscopic analyses.

scholarly journals Ag2O/GO/TiO2 Composite Nanostructure: an efficient heterogeneous catalyst for one pot synthesis of Bis (dihydropyrimidinone) and tetrahydro-4H-chromenes derivatives

2021 ◽  
Author(s):  
Fatemeh Samandi Zadeh ◽  
Mohammad Kazem Mohammadi ◽  
Ayeh Raeiatzadeh ◽  
Neda Hasanzadeh
Keyword(s):  
Condensation Reaction ◽  
Aromatic Aldehydes ◽  
Synthesis Methods ◽  
X Ray Diffraction ◽  
One Pot ◽  
Transmission Electron ◽  
One Pot Condensation ◽  
Effective Synthesis ◽  
Ft Ir ◽  
Biginelli Condensation

Abstract The simple and efficient synthesis reaction was used for preparing Bis (dihydropyrimidinone) derivatives through Biginelli condensation reaction of terephthalic aldehyde, 1, 3-dicarbonyl compounds and (thio) urea or guanidine and tetrahydro-4H-chromenes via one pot condensation of aromatic aldehydes, malononitrile and dimedone with Ag2O/GO/TiO2 composite nanostructures as a catalyst. The structural functionalities and morphological observations of catalyst were obtained using characterization techniques of field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier transfer infrared (FT-IR) spectroscopy and transmission electron microscope (TEM). The structures of Bis (dihydropyrimidinone) and tetrahydro-4H-chromenes confirmed by FT- IR, NMR and mass spectroscopy. Excellent yields of the products, simple reaction process and simple work-up are attractive features of these effective synthesis methods.

scholarly journals One-Pot Synthesis ofβ-Acetamido Ketones Using Boric Acid at Room Temperature

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Zahed Karimi-Jaberi ◽  
Korosh Mohammadi
Keyword(s):  
Boric Acid ◽  
Room Temperature ◽  
Simple Procedure ◽  
Condensation Reaction ◽  
Solid Acid Catalyst ◽  
Reaction Times ◽  
Acid Catalyst ◽  
One Pot ◽  
Green Catalyst ◽  
One Pot Condensation

β-acetamido ketones were synthesized in excellent yields through one-pot condensation reaction of aldehydes, acetophenones, acetyl chloride, and acetonitrile in the presence of boric acid as a solid heterogeneous catalyst at room temperature. It is the first successful report of boric acid that has been used as solid acid catalyst for the preparation ofβ-acetamido ketones. The remarkable advantages offered by this method are green catalyst, mild reaction conditions, simple procedure, short reaction times, and good-to-excellent yields of products.

scholarly journals Ag2O/GO/TiO2 Composite Nanostructure: An Efficient Heterogeneous Catalyst for one Pot Synthesis of Bis (Dihydropyrimidinone) and Tetrahydro-4H-chromenes Derivatives

2020 ◽  
Author(s):  
Fatemeh Samandi Zadeh ◽  
Mohammad Kazem Mohammadi ◽  
Ayeh Rayatzadeh ◽  
Neda Hasanzadeh
Keyword(s):  
Condensation Reaction ◽  
Aromatic Aldehydes ◽  
Synthesis Methods ◽  
X Ray Diffraction ◽  
One Pot ◽  
Transmission Electron ◽  
One Pot Condensation ◽  
Effective Synthesis ◽  
Ft Ir ◽  
Biginelli Condensation

Abstract The simple and efficient synthesis reaction was used for preparing Bis (dihydropyrimidinone) derivatives through Biginelli condensation reaction of terephthalic aldehyde, 1, 3-dicarbonyl compounds and (thio) urea or guanidine and tetrahydro-4H-chromenes via one pot condensation of aromatic aldehydes, malononitrile and dimedone with Ag2O/GO/TiO2 composite nanostructures as a catalyst. The structural functionalities and morphological observations of catalyst were obtained using characterization techniques of field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier transfer infrared (FT-IR) spectroscopy and transmission electron microscope (TEM). The structures of Bis (dihydropyrimidinone) and tetrahydro-4H-chromenes confirmed by FT- IR, NMR and mass spectroscopy. Excellent yields of the products, simple reaction process and simple work-up are attractive features of these effective synthesis methods.

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