ChemInform Abstract: One-Pot Efficient Synthesis of 2-Aryl-1-arylmethyl-1H-benzimidazoles and 2,4,5-Triaryl-1H-imidazoles Using Oxalic Acid Catalyst.

3,4-Dihydropyrimidin-2(1H)-ones derivatives were synthesized in moderate to high yields in one-pot three component reaction from the corresponding aldehydes, 1,3-dicarbonyl compounds and urea, Coconut shell char sulfonic acid (CSCSA) used as a reusable, and efficient catalyst. Compared to the classical acid catalyst, This new protocol for the Biginelli reaction includes the following important features: excellent yields, non-toxic, inexpensive and easily available reagent.

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One-pot Three-component Synthesis of β-amino Carbonyl Compounds Using Nanocrystalline Solid Acid Catalyst

International Journal of Green Nanotechnology ◽

10.1177/1943089213507161 ◽

2013 ◽

Vol 1 ◽

pp. 194308921350716 ◽

Cited By ~ 1

Author(s):

Abbas Teimouri ◽

Leila Ghorbanian

Keyword(s):

Carbonyl Compounds ◽

Organic Molecules ◽

Solid Acid ◽

Solid Acid Catalyst ◽

Reaction Times ◽

Acid Catalyst ◽

Aromatic Aldehydes ◽

Efficient Synthesis ◽

One Pot ◽

The Mannich Reaction

This study presents a simple highly versatile and efficient synthesis of various β-amino carbonyl compounds in the Mannich reaction of acetophenone with aromatic aldehydes and aromatic amines in the presence of nanosulfated zirconia, nanostructured ZnO, nano-γ-alumina, and nano-ZSM-5 zeolites as the catalyst in ethanol at moderate temperature. The optical properties of the nanostructured organic molecules were studied. The advantages of methods are short reaction times, milder conditions, easy workup, and purification of products by nonchromatographic methods. The catalysts can be recovered for the subsequent reactions and reused without any appreciable loss of efficiency.

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An Efficient Synthesis of 3,4-dihydro-2(1H)-pyrimidinones from Aldehyde Bisulfite Adducts using Recyclable Wang Resin Supported Sulfonic Acid Catalyst

Letters in Organic Chemistry ◽

10.2174/1570178618666210225113723 ◽

2021 ◽

Vol 18 ◽

Author(s):

Vinay Kumar K P ◽

Vinti S P Rao ◽

Jaganmohan C ◽

Sandeep Mohanty ◽

Jaydeep Kumar ◽

...

Keyword(s):

Ethyl Acetoacetate ◽

Sulfonic Acid ◽

Acid Catalyst ◽

New Method ◽

Efficient Synthesis ◽

Multicomponent Synthesis ◽

One Pot ◽

Wang Resin ◽

Product Yields ◽

Polymer Supported

: An efficient one pot multicomponent synthesis of 3,4- dihydropyrimidin-2(1H)-ones has been developed from aldehyde bisulfite adducts, ethyl acetoacetate and urea using recyclable polymer supported sulfonic acid catalyst. This new method provides several advantages over previous synthesis including high product yields, commercially viable, minimal workup operations and sustainable chemical practices.

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Facile and Efficient Synthesis of New Class of Imidazole Derivatives via One-Pot Multicomponent Reactions in Water

Combinatorial Chemistry & High Throughput Screening ◽

10.2174/13862073113169990046 ◽

2013 ◽

Vol 16 (10) ◽

pp. 788-790

Author(s):

Zinatossadat Hossaini ◽

Samereh Seyfi ◽

Faramarz Rostami-Charati ◽

Mehdi Ghambarian

Keyword(s):

Multicomponent Reactions ◽

Efficient Synthesis ◽

One Pot ◽

Imidazole Derivatives ◽

New Class

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One Pot, Simple, and Efficient Synthesis of 2-Azetidinones Mediated by 3-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4-(3H)-one

Letters in Organic Chemistry ◽

10.2174/1570180814666170612120845 ◽

2017 ◽

Vol 14 (8) ◽

Cited By ~ 2

Author(s):

Mahnaz Saraei ◽

Maaroof Zarei ◽

Saleheh Zavar

Keyword(s):

Efficient Synthesis ◽

One Pot

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An Efficient Synthesis of 2-Substituted Quinazolin-4(3H)-ones by Using Recyclable Wang Resin Supported Sulfonic Acid Catalyst

Letters in Organic Chemistry ◽

10.2174/1570178617999201109203731 ◽

2020 ◽

Vol 17 ◽

Author(s):

Kalyani K. ◽

Srinivasa Reddy Kallam

Keyword(s):

Sulfonic Acid ◽

Functional Group ◽

Acid Catalyst ◽

Sulphonic Acid ◽

Isatoic Anhydride ◽

Efficient Synthesis ◽

Wang Resin ◽

Polymer Supported ◽

High Yields

Abstract:: An efficient synthesis of 2-substituted Quinazolin-4(3H)-ones has been developed from isatoic anhydride with various amidoximes by using recyclable polymer supported sulphonic acid catalyst. Excellent functional group compatibil-ity and high yields are the important features of this protocol.

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