[New compounds and reactions of sulfonamides with amines. XXIII. Synthesis of various N-(4-(2-(pyridinecarboxamido)ethyl)-benzenesulphonyl)-alkyl-2-pyrazoline-1-carboxamides].
1978
F Gajewski, and
Z Brzozowski
UI
MeSH Term
Description
Entries
D007202
Indicators and Reagents
Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant & Hackh's Chemical Dictionary, 5th ed, p301, p499)
Indicator,Reagent,Reagents,Indicators,Reagents and Indicators
D011720
Pyrazoles
Azoles of two nitrogens at the 1,2 positions, next to each other, in contrast with IMIDAZOLES in which they are at the 1,3 positions.
D011725
Pyridines
Compounds with a six membered aromatic ring containing NITROGEN. The saturated version is PIPERIDINES.
D000577
Amides
Organic compounds containing the -CO-NH2 radical. Amides are derived from acids by replacement of -OH by -NH2 or from ammonia by the replacement of H by an acyl group. (From Grant & Hackh's Chemical Dictionary, 5th ed)
Amide
D000588
Amines
A group of compounds derived from ammonia by substituting organic radicals for the hydrogens. (From Grant & Hackh's Chemical Dictionary, 5th ed)
Amine
D013449
Sulfonamides
A group of compounds that contain the structure SO2NH2.