Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

0
28
0

Year Published

2013
2013
2019
2019

Publication Types

Select...
7

Relationship

1
6

Authors

Journals

citations
Cited by 36 publications
(28 citation statements)
references
References 17 publications
0
28
0
Order By: Relevance
“…The considerable biological and medicinal activities of nicotinic acid and its derivatives [2][3][4][5] have promoted recent interest in synthesis of new nicotinic acids of potential biological activities. Although condensation reactions of arylhydrazonals with active methylene nitriles were originally reported to afford pyridazin-6-imines [6], more recent studies have demonstrated that arylazonicotinates are also formed in some of these processes [7][8][9].…”
Section: Introductionmentioning
confidence: 99%
“…The considerable biological and medicinal activities of nicotinic acid and its derivatives [2][3][4][5] have promoted recent interest in synthesis of new nicotinic acids of potential biological activities. Although condensation reactions of arylhydrazonals with active methylene nitriles were originally reported to afford pyridazin-6-imines [6], more recent studies have demonstrated that arylazonicotinates are also formed in some of these processes [7][8][9].…”
Section: Introductionmentioning
confidence: 99%
“…The product structure was assigned by using X-ray crystallographic analysis (Figure 3) [35]. These derivatives could be previously prepared in the presence of homogeneous basic catalysts [9,10,11,12,13,14,15,16,17]. As a result of the cross-linking nature of the invented Cs-PVP catalyst, it could be readily isolated by simple filtration and reused again for more than five times without loss of its catalytic activity, after extensive washing with hot ethanol and drying in an oven at 100 °C for 4 h. Similarly, reaction of 1 with cyclohexanone was conducted successfully in the presence of Cs-PVP beads to give a similar product 3 to that was obtained previously [9] in the presence of chitosan (55%) but in much higher yield (~90%).…”
Section: Resultsmentioning
confidence: 99%
“…All these products were previously [9,11] obtained in presence of chitosan but in lower yields, and furthermore, with the latter, removal of the product from the catalyst could not be easily accomplished as in each case the catalyst adsorbed part of the reaction media forming a gel mass. The cross-linked graft copolymer beads did not behave similarly and its use in the form of beads has enhanced its catalytic activity to a great extent.…”
Section: Resultsmentioning
confidence: 99%
See 2 more Smart Citations