scholarly journals Efficient Synthesis of Readily Water-Soluble Sulfonic Acid Carbamates

Molecules ◽  
2015 ◽  
Vol 20 (4) ◽  
pp. 6856-6865 ◽  
Author(s):  
Krzysztof Idzik ◽  
Karsten Nödler ◽  
Tobias Licha
Keyword(s):  
Sulfonic Acid ◽  
Water Soluble ◽  
Efficient Synthesis

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

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.

Efficient Synthesis 2,3-Dihydroquinazolin-4(1H)-Ones Using Coconut Shell Char Sulfonic Acid as a Reusable Catalyst in Ethanol

2014 ◽  
Vol 989-994 ◽  
pp. 83-86
Author(s):  
Xuan Yan Liu ◽  
Zhi Gao Yang
Keyword(s):  
Sulfonic Acid ◽  
Biginelli Reaction ◽  
Acid Catalyst ◽  
Coconut Shell ◽  
Reusable Catalyst ◽  
Efficient Synthesis ◽  
One Pot ◽  
Efficient Catalyst ◽  
Three Component Reaction ◽  
High Yields

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.

Synthesis of the Water-Soluble, Electrically Conducting Poly(5-Aminonaphthalene-2-sulfonic Acid)

2000 ◽  
Vol 29 (3) ◽  
pp. 276-277 ◽  
Author(s):  
S. Atkinson ◽  
H. S. O. Chan ◽  
A. J. Neuendorf ◽  
S. C. Ng ◽  
T. T. Ong ◽  
...  
Keyword(s):  
Sulfonic Acid ◽  
Water Soluble ◽  
Electrically Conducting

scholarly journals Study of the Water-soluble Sulfonic Acid by SO3-sulfonation

1966 ◽  
Vol 69 (2) ◽  
pp. 276-279
Author(s):  
Nobuyoshi TOYODA ◽  
Hideo SAKAMOTO ◽  
Tetsuya YAGI
Keyword(s):  
Sulfonic Acid ◽  
Water Soluble
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