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2-Bromopyridine reacts with butyllithium to give 2-lithiopyridine, [2] which is a versatile reagent. [3] Pyrithione can be prepared in a two-step synthesis from 2-bromopyridine by oxidation to the N-oxide with a suitable peracid followed by substitution using either sodium dithionite or sodium sulfide with sodium hydroxide to introduce the thiol functional group.
RCH=CH 2 + HBr → RCHBrCH 3. Under free radical conditions, the direction of the addition can be reversed. Free-radical addition is used commercially for the synthesis of 1-bromoalkanes, precursors to tertiary amines and quaternary ammonium salts. 2-Phenethyl bromide (C 6 H 5 CH 2 CH 2 Br) is produced via this route from styrene.
3-Bromopyridine is an aryl bromide and isomer of bromopyridine with the formula C 5 H 4 BrN. It is a colorless liquid that is mainly used as a building block in organic synthesis. [1] [2] It participates as a substrate in many reactions associated with aryl halides, e.g., the Heck reaction [3] and Buchwald-Hartwig coupling. [4]
2,6-Dichloropyridine is a chloropyridine with the formula C 5 H 3 Cl 2 N. A white solid, it is one of six isomers of dichloropyridine . It serves as a precursor to the antibiotic enoxacin , [ 2 ] as well as the drug and anpirtoline and the antifungal liranaftate .
As 2 O 5: arsenic pentoxide: 1303-28-2 As 2 S 4: arsenic tetrasulfide: 1303-32-8 As 2 S 5: arsenic pentasulfide: 1303-34-0 As 2 Se: arsenic hemiselenide: 1303-35-1 As 2 Se 3: arsenic triselenide: 1303-36-2 As 2 Se 5: arsenic pentaselenide: 1303-37-3 As 3 O 4: arsenic tetraoxide: 83527-53-1 As 3 P: arsenic(III) phosphide: 12512-11-7 As 4 O 3 ...
5-Bromouridine (abbreviated BrUrd, 5BrU, br5Urd or rarely the one letter code B) [2] is a uridine derivative with a bromo substituent at the fifth carbon. [3] BrUrd is incorporated into RNA and can be detected immunocytochemically and analysed by cytometry.
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2-Aminopyridine is an organic compound with the formula H 2 NC 5 H 4 N. It is one of three isomeric aminopyridines. It is a colourless solid that is used in the production of the drugs piroxicam, sulfapyridine, tenoxicam, and tripelennamine. It is produced by the reaction of sodium amide with pyridine, the Chichibabin reaction. [3]
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