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4,4′-Bipyridine (abbreviated to 4,4′-bipy or 4,4′-bpy) is an organic compound with the formula (C 5 H 4 N) 2. It is one of several isomers of bipyridine. It is a colorless solid that is soluble in organic solvents. is mainly used as a precursor to N,N′-dimethyl-4,4′-bipyridinium [(C 5 H 4 NCH 3) 2] 2+, known as paraquat.
In the example, there is a bromo-substituted -CH 2-CH 2 - subunit. 1-Bromoethane-1,2-diyl is chosen in preference to 2- bromoethane-1,2-diyl as the former has a lower locant for the bromo-substituent. The preferred CRU is therefore oxy(1-bromoethane-1,2-diyl) and the polymer is thus named poly[oxy(1-bromoethane-1,2-diyl)].
Bipyridines are a family of organic compounds with the formula (C 5 H 4 N) 2, consisting of two pyridyl (C 5 H 4 N) rings. Pyridine is an aromatic nitrogen-containing heterocycle. The bipyridines are all colourless solids, which are soluble in organic solvents and slightly soluble in water. Bipyridines, especially the 4,4' isomer, are mainly of ...
The addition product of methanol to 2-vinylpyridine, 2-(2-methoxyethyl)pyridine is a veterinary anthelmintic. [1] Treating 2-vinylpyridine with 4-pyridinecarbonitrile and hydrogen chloride gives 1-[2-(2-pyridyl)ethyl]-4-cyanopyridinium chloride, which then can be used to prepare dimethylaminopyridine (DMAP), a widely used base catalyst.
4-Vinylpyridine (4-VP) is an organic compound with the formula CH 2 CHC 5 H 4 N. It is a derivative of pyridine with a vinyl group in the 4-position. It is a colorless liquid, although impure samples are often brown. It is a monomeric precursor to specialty polymers. 4-Vinylpyridine is prepared by the condensation of 4-methylpyridine and ...
2-Mercaptopyridine is an organosulfur compound with the formula HSC 5 H 4 N. This yellow crystalline solid is a derivative of pyridine. The compound and its derivatives serve primarily as acylating agents. A few of 2-mercaptopyridine's other uses include serving as a protecting group for amines and imides as well as forming a selective reducing ...
Pyrazolo[3,4-b]pyridine, the base chemical structure of this class. The pyrazolopyridines are a group of drugs investigated as anxiolytics which act as positive allosteric modulators of the GABA A receptor via the barbiturate binding site. [1] [2] They include the following compounds: Cartazolate (SQ-65,396) Etazolate (SQ-20,009) ICI-190,622 ...
Lutidinic acid (pyridine-2,4-dicarboxylic acid) is an heterocyclic organic compound, more precisely a heteroaromatic. It belongs to the group of pyridine dicarboxylic acids and consists of a pyridine ring which carries two carboxy groups in the 2- and 4-position.