Synthesis of some pyrazole-3-carboxylic acid-hydrazide and pyrazolopyridazine compounds

2005 ◽  
Vol 42 (1) ◽  
pp. 117-120 ◽  
Author(s):  
İ Özer İlhan ◽  
Emin Saripinar ◽  
Yunus Akçamur
Keyword(s):  
Carboxylic Acid ◽  
Acid Hydrazide ◽  
Carboxylic Acid Hydrazide

scholarly journals A microwave-catalyzed rapid, efficient and ecofriendly synthesis of substituted pyrazol-5-ones (Short communication)

2003 ◽  
Vol 68 (10) ◽  
pp. 723-727 ◽  
Author(s):  
Vijay Dabholkar ◽  
Rahul Gavande
Keyword(s):  
Acetic Acid ◽  
Carboxylic Acid ◽  
Microwave Irradiation ◽  
Reaction Rate ◽  
Short Communication ◽  
Acid Hydrazide ◽  
Acetoacetic Ester ◽  
Carboxylic Acid Hydrazide ◽  
Conventional Methods

A series of 1-(3,4-dihydro-3-oxo-2H-1,4-benzoxazine-2-carbonyl)-3-methyl-4-(substituted phenylhydrazono)-2-pyrazolin-5-ones have been synthesized by the reaction of 2H-3,4-dihydro-3-oxo-1,4-benzoxazine-2-carboxylic acid hydrazide with substituted acetoacetic ester derivatives using acetic acid as solvent under microwave irradiation (MWI), as well as by conventional methods. The reaction rate is enhanced tremendously and the yields are improved under MWI as compared to conventional methods.

Substitution of Cyano Group in Position 5 of 1,2,4-Triazines by Carboxylic Acid Hydrazide Residues under Solvent-Free Conditions

2018 ◽  
Vol 54 (3) ◽  
pp. 509-511 ◽  
Author(s):  
D. S. Kopchuk ◽  
A. P. Krinochkin ◽  
E. S. Starnovskaya ◽  
Ya. K. Shtaitz ◽  
I. S. Kovalev ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Cyano Group ◽  
Acid Hydrazide ◽  
Solvent Free ◽  
Carboxylic Acid Hydrazide ◽  
Solvent Free Conditions

Fluorescent staining of glycoproteins in sodium dodecyl sulfate polyacrylamide gels by 4H-[1]-benzopyrano[4,3-b]thiophene-2-carboxylic acid hydrazide

The Analyst ◽  
2014 ◽  
Vol 139 (11) ◽  
pp. 2764-2773 ◽  
Author(s):  
Zhongxin Zhu ◽  
Xuan Zhou ◽  
Yang Wang ◽  
Lisha Chi ◽  
Dandan Ruan ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Sodium Dodecyl Sulfate ◽  
Staining Method ◽  
Sodium Dodecyl ◽  
Acid Hydrazide ◽  
Polyacrylamide Gels ◽  
Fluorescent Staining ◽  
Affinity Enrichment ◽  
Carboxylic Acid Hydrazide ◽  
Sds Page

A sensitive, specific, economic and MS compatible staining method for gel-separated glycoproteins by using BH was described and demonstrated by 1-D and 2-D SDS-PAGE, deglycosylation, glycoprotein affinity enrichment and LC-MS/MS, respectively.

scholarly journals Synthesis of 3-Chloropyridazine-6-carboxylic Acid Hydrazide and Selective Hydrazinolysis of 3,6-Substituted Pyridazines.

1994 ◽  
Vol 42 (2) ◽  
pp. 371-372 ◽  
Author(s):  
Muneo MORISHITA ◽  
Jun KOBAYASHI ◽  
Hiroshi YAMADA ◽  
Takehiko YAJIMA
Keyword(s):  
Carboxylic Acid ◽  
Acid Hydrazide ◽  
Carboxylic Acid Hydrazide

scholarly journals Subdivision of Mycobacterium tuberculosis into five variants for epidemiological purposes: methods and nomenclature

1982 ◽  
Vol 89 (2) ◽  
pp. 235-242 ◽  
Author(s):  
C. H. Collins ◽  
M. D. Yates ◽  
J. M. Grange
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Carboxylic Acid ◽  
Nitrate Reductase ◽  
Nitrate Reductase Activity ◽  
Reductase Activity ◽  
Acid Hydrazide ◽  
Epidemiological Studies ◽  
Oxygen Requirement ◽  
Carboxylic Acid Hydrazide ◽  
Virulent Strains

SUMMARYVirulent strains of Mycobacterium tuberculosis isolated from humans are divisible into five variants by using four tests: oxygen requirement (aerobic or microaerophilic), nitrate reductase activity, susceptibility to pyrazinamide (60 μg/ml) and susceptibility to thiophene-2-carboxylic acid hydrazide (5 μg/ml). The five variants are referred to as Classical human, Asian human, bovine, African I and African II. The relation of these variants to previously described types is discussed. This simple division has been shown to be useful in epidemiological studies.

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