2-Bromopyridine
2-Bromopyridine is an organic compound with the formula BrC5H4N. It is a colorless liquid that is used as an intermediate in organic synthesis. It can be prepared from 2-aminopyridine via diazotization followed by bromination.[1]
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Preferred IUPAC name
2-Bromopyridine | |
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ECHA InfoCard | 100.003.311 |
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Properties | |
C5H4NBr | |
Molar mass | 158.00 |
Appearance | colorless liquid |
Boiling point | 194.8 °C |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Reactions
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.[4]
References
- Allen, C. F. H.; Thirtle, John R. "2-Bromopyridine" Organic Syntheses 1946, volume 26, pp. 16-18. doi:10.15227/orgsyn.026.0016
- Yamamoto, Yasunori; Sugai, Juugaku; Takizawa, Miho; Miyaura, Norio (2011). "Synthesis of Lithium 2-Pyridyltriolborate and ITS Cross-Coupling Reaction with Aryl Halides". Organic Syntheses. 88: 79. doi:10.15227/orgsyn.088.0079.
- Satinder V. Kessar, Paramjit Singh, Dmitry Zuev, Zhenlei Song, Ya Wu "2-Lithiopyridine" e-EROS Encyclopedia of Reagents for Organic Synthesis, 2015. doi:10.1002/047084289X.rl025.pub3
- Knight, David W.; Hartung, Jens (15 September 2006). "1-Hydroxypyridine-2(1H)-thione". 1-Hydroxypyridine-2(1H)-thione. Encyclopedia of Reagents for Organic Synthesis. John Wiley & Sons. doi:10.1002/047084289X.rh067.pub2. ISBN 0471936235.
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