Alum (KAl(SO4)2·12H2O)-Catalyzed, Eco-Friendly, and Efficient One-Pot Synthesis of 2-Arylbenzothiazoles and 2-Arylbenzoxazole in Aqueous Medium

2008 ◽  
Vol 61 (11) ◽  
pp. 905 ◽  
Author(s):  
Shivaji S. Pawar ◽  
Deepak V. Dekhane ◽  
Murlidhar S. Shingare ◽  
Shivaji N. Thore
Keyword(s):  
Ambient Temperature ◽  
Aqueous Medium ◽  
Simple Procedure ◽  
Reaction Yield ◽  
One Pot ◽  
Mild Conditions ◽  
One Pot Synthesis ◽  
Novel Catalyst

Alum (KAl(SO4)2·12H2O) performs as a novel catalyst for the synthesis of 2-arylbenzothiazoles and 2-arylbenzoxazole from o-aminothiophenol and o-aminophenol with various substituted aldehydes in good to excellent isolated yields (85–95%) using water as a solvent at ambient temperature. Several solvents were examined for this reaction; however, in terms of reaction yield and time, water was found to be the optimum solvent. The remarkable advantages offered by this method are an inexpensive and easily available catalyst, a simple procedure, mild conditions, much faster (60–90 min) reactions, and good to excellent yields of products.

Copper-Catalyzed One-Pot Synthesis of 2,3-Dihydroquinazolin-4(1H)-ones from 2-Nitrobenzonitriles and Carbonyl Compounds Mediated by Diboronic Acid in Methanol–Water

Synlett ◽  
2019 ◽  
Vol 31 (03) ◽  
pp. 275-279 ◽  
Author(s):  
Qixing Liu ◽  
Yuebo Sui ◽  
Yin Zhang ◽  
Kaili Zhang ◽  
Yongsheng Chen ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Carbonyl Compounds ◽  
Functional Group ◽  
One Pot ◽  
Mild Conditions ◽  
One Pot Synthesis

A copper-catalyzed one-pot synthesis of 2,3-dihydroquinazolin-4(1H)-ones with diboronic acid as a reductant in an aqueous medium is described. Various 2,3-dihydroquinazolin-4(1H)-ones were prepared with good functional-group tolerance in good yields under mild conditions from readily available 2-nitrobenzonitriles and various carbonyl compounds.

ChemInform Abstract: Nanodomain Cubic Cuprous Oxide as Reusable Catalyst in One-Pot Synthesis of 3-Alkyl/Aryl-3- (pyrrole-2-yl/indole-3-yl)-2-phenyl-2,3-dihydro-isoindolinones in Aqueous Medium.

ChemInform ◽  
2014 ◽  
Vol 45 (41) ◽  
pp. no-no
Author(s):  
Swarbhanu Sarkar ◽  
Nivedita Chatterjee ◽  
Manas Roy ◽  
Rammyani Pal ◽  
Sabyasachi Sarkar ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Cuprous Oxide ◽  
Reusable Catalyst ◽  
One Pot ◽  
Alkyl Aryl ◽  
One Pot Synthesis

scholarly journals One-pot synthesis of polysubstituted indoles from aliphatic nitro compounds under mild conditions

2007 ◽  
Vol 48 (10) ◽  
pp. 1809-1811 ◽  
Author(s):  
Christopher A. Simoneau ◽  
Alexis M. Strohl ◽  
Bruce Ganem
Keyword(s):  
Nitro Compounds ◽  
One Pot ◽  
Aliphatic Nitro Compounds ◽  
Mild Conditions ◽  
One Pot Synthesis

scholarly journals Synthesis of 2,4,6-triarylpyridines Using AlPO4 Under Solvent-free Conditions

2010 ◽  
Vol 2 (2) ◽  
pp. 337-342 ◽  
Author(s):  
P. Rajput ◽  
N. J. P. Subhashini ◽  
Shiva Raj
Keyword(s):  
Heterogeneous Catalyst ◽  
Simple Procedure ◽  
Reaction Times ◽  
Aluminum Phosphate ◽  
Solvent Free ◽  
One Pot ◽  
One Pot Synthesis ◽  
Solvent Free Conditions

A series of 2,4,6-triarylpyridines have been prepared using a variety of aromatic and heteroaromatic aldehydes in the presence of aluminum phosphate (AlPO4) as a heterogeneous catalyst at 120 oC under solvent-free conditions. The present methodology offers several advantages such as excellent yields, simple procedure, shorter reaction times, milder conditions and the catalyst exhibited remarkable reusable activity. Keywords: Aluminum phosphate; 2,4,6-triarylpyridines; One-pot synthesis; Shorter reaction times;  Reusable activity.  © 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. DOI: 10.3329/jsr.v2i2.3859               J. Sci. Res. 2 (2), 337-342 (2010) 

scholarly journals Nano-Rb2HPW12O40 as an Efficient and Novel Catalyst for One-Pot Synthesis of β-Amino Ketones

2016 ◽  
pp. 781-789
Author(s):  
Fatemeh Moradgholi ◽  
Jalil Lari ◽  
Mahnaz Vahidi Parsa ◽  
Mehran Mirkharrazi
Keyword(s):  
One Pot ◽  
One Pot Synthesis ◽  
Novel Catalyst

Palladium-Catalyzed One-Pot Stereospecific Synthesis of 2-Deoxy Aryl C-Glycosides from Glycals and Anilines in the Presence of tert-Butyl Nitrite

Synthesis ◽  
2019 ◽  
Vol 51 (22) ◽  
pp. 4215-4230 ◽  
Author(s):  
Adesh Kumar Singh ◽  
Rapelly Venkatesh ◽  
Jeyakumar Kandasamy
Keyword(s):  
Room Temperature ◽  
Stereospecific Synthesis ◽  
One Pot ◽  
Tert Butyl ◽  
Mild Conditions ◽  
One Pot Synthesis ◽  
Palladium Catalyzed ◽  
Aryl Glycosides

The palladium-catalyzed one-pot synthesis of 2,3-deoxy-3-keto aryl C-glycosides is achieved from glycals and anilines in the presence of tert-butyl nitrite and aqueous HBF4 under mild conditions. This one-pot method stereospecifically provides α- and β-aryl glycosides (≥19:1 by NMR) in good yields at room temperature. The configuration at the C-3 position in the glycal determines the anomeric selectivity (i.e., α or β) of the desired products.

Hydrophilic Pd-phosphines catalyzed one-pot synthesis of substituted isoquinolines, furopyridines and thienopyridines in aqueous medium

2019 ◽  
Vol 60 (3) ◽  
pp. 297-299 ◽  
Author(s):  
Veeranna Guguloth ◽  
Narasimha Swamy Thirukovela ◽  
Ramesh Balaboina ◽  
Suresh Paidakula ◽  
Ravinder Vadde
Keyword(s):  
Aqueous Medium ◽  
One Pot ◽  
One Pot Synthesis
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