scholarly journals Synthesis of indeno-[1,2-b]-quinoline-9,11(6H,10H)-dione and 7,7-dimethyl-10-aryl-7,8-dihydro-5H-indeno[1,2-b]quinoline-9,11(6H,10H)-dione derivatives in presence of heterogeneous Cu/zeolite-Y as a catalyst

RSC Advances ◽  
2022 ◽  
Vol 12 (4) ◽  
pp. 2083-2093
Author(s):  
Shankar D. Dhengale ◽  
Chandrashekhar V. Rode ◽  
Govind B. Kolekar ◽  
Prashant V. Anbhule
Keyword(s):  
Zeolite Y ◽  
Aromatic Aldehydes ◽  
Simple Synthesis

A simple synthesis of indeno-[1,2-b]-quinoline-9,11-(6H,10H)-dione derivatives and 7,7-dimethyl-10-aryl-7,8-dihydro-5H-indeno[1,2-b]quinoline-9,11(6H,10H)-diones using aromatic aldehydes with heterogeneous CuO on a zeolite-Y catalyst is reported.

SO3H-functionalized Zeolite-Y as an Efficient Nanocatalyst for the Synthesis of Nbenzimidazole- 2-aryl-4-thiazolidinones and tri-substituted Imidazoles

2020 ◽  
Vol 17 (2) ◽  
pp. 117-130 ◽  
Author(s):  
Mehdi Kalhor ◽  
Zohre Zarnegar ◽  
Zahra Seyedzade ◽  
Soodabeh Banibairami
Keyword(s):  
Zeolite Y ◽  
Internal Standard ◽  
Acid Catalyst ◽  
Aromatic Aldehydes ◽  
Reaction Rates ◽  
Ambient Conditions ◽  
Catalytic Method ◽  
Efficient Catalyst ◽  
Bet Analysis ◽  
Ft Ir

Background: SO3H-functionalized zeolite-Y was prepared and used as a catalyst for the synthesis of 2-aryl-N-benzimidazole-4-thiazolidinones and tri-substituted imidazoles at ambient conditions. Objective: The goals of this catalytic method include excellent yields and high purity, inexpensive procedure and ease of product isolation, the use of nontoxic and heterogeneous acid catalyst, shorter reaction times and milder conditions. Materials and Methods: NMR spectra were recorded on Brucker spectrophotometer using Me4Si as internal standard. Mass spectra were recorded on an Agilent Technology 5975C VL MSD with tripe-axis detector. FTIR spectra were obtained with KBr disc on a galaxy series FT-IR 5000 spectrometer. The surface morphology of nanostructures was analyzed by FE-SEM (EVO LS 10, Zeiss, Carl Zeiss, Germany). BET analysis were measured at 196 °C by a Japan Belsorb II system after the samples were vacuum dried at 150°C overnight. Results: The NSZ was characterized by FT-IR, FESEM, EDX, XRF, and BET. The catalytic activity of NSZ was investigated for synthesis of 1,3-tiazolidin-4-ones in H2O/Acetone at room temperature. Moreover, NSZ was used for synthesis of tri-substituted imidazoles at 60 °C via solvent-free condensation. Different kinds of aromatic aldehydes were converted to the corresponding of products with good to excellent yields. Conclusion: Sulfonated zeolite-Y was as an efficient catalyst for the preparation of N-benzimidazole-2-aryl-1,3- thiazolidin-4-ones and 2,4,5-triaryl-1H-imidazoles. High reaction rates, elimination toxic solvent, simple experimental procedure and reusability of the catalyst are the important features of this protocol.

ChemInform Abstract: γ-Regioselectivity of Lithiated 2-Buten-4-olide Towards Aromatic Aldehydes: A Simple Synthesis of γ-Arylidenebutenolides.

ChemInform ◽  
2010 ◽  
Vol 29 (51) ◽  
pp. no-no ◽  
Author(s):  
M. POHMAKOTR ◽  
P. TUCHINDA ◽  
P. PREMKAISORN ◽  
V. REUTRAKUL
Keyword(s):  
Aromatic Aldehydes ◽  
Simple Synthesis

γ-Regioselectivity of lithiated 2-buten-4-olide towards aromatic aldehydes: a simple synthesis of γ-arylidenebutenolides

Tetrahedron ◽  
1998 ◽  
Vol 54 (37) ◽  
pp. 11297-11304 ◽  
Author(s):  
Manat Pohmakotr ◽  
Patoomratana Tuchinda ◽  
Pornchai Premkaisorn ◽  
Vichai Reutrakul
Keyword(s):  
Aromatic Aldehydes ◽  
Simple Synthesis

scholarly journals Simple synthesis of new imidazopyridinone, pyridopyrimidinone, and thiazolopyridinone derivatives and optimization of reaction parameters using response surface methodology

RSC Advances ◽  
2019 ◽  
Vol 9 (52) ◽  
pp. 30479-30488 ◽  
Author(s):  
Fahimeh Sadat Hosseini ◽  
Mohammad Bayat
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Response Surface Method ◽  
Aromatic Aldehydes ◽  
Simple Synthesis ◽  
Reaction Parameters ◽  
Reaction Conditions ◽  
One Pot ◽  
Surface Method ◽  
The One

The one-pot reaction of various diamines with cysteamine hydrochloride or 1,1-bis(methylthio)-2-nitroethene, aromatic aldehydes, and Meldrum's acid led to pyridone compounds in good yields. The reaction conditions were optimized using response surface method.

Simple Synthesis ofGeminalDiacetates (Acylals) of Aromatic Aldehydes

2006 ◽  
Vol 36 (9) ◽  
pp. 1213-1220 ◽  
Author(s):  
Yurngdong Jahng ◽  
Motiur A. F. M. Rahman
Keyword(s):  
Aromatic Aldehydes ◽  
Simple Synthesis
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