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vicinal
vicinal, a. (ˈvɪsɪnəl, vɪˈsaɪnəl) [ad. L. vīcīnāl-is, f. vīcīn-us neighbour. So OF. and F. vicinal.] 1. ‘Belonging to neighbours or neighbourhood.’1623 Cockeram i. 1656 Blount Glossogr. 1727 Bailey (vol. II). 2. vicinal way or vicinal road, a local common way as distinguished from a highway; a by-ro...
Oxford English Dictionary
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Vicinal
Vicinal may refer to:
Vicinal (chemistry), stands for any two functional groups bonded to two adjacent atoms. Vicinal (logology), a word where all letters have alphabetic neighbors.
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Vicinal
‖ Vicinal, n. (visinal) [Belgian Fr. (Robert Suppl., 1970), f. the adj.: see vicinal a. 2 b.] The Société Nationale des Chemins de Fer Vicinaux, the Belgian local railway company, established in 1885; also, a local railway system in Belgium.1895 Engineer 19 Apr. 325/1 It was not considered..that ‘vi...
Oxford English Dictionary
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Vicinal (logology)
A vicinal is a logological term for a word where all its letters have "alphabetic neighbors". For instance, if a word has an "O" in it, to be a vicinal it must also have an "N" and/or a "P".
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Vicinal (chemistry)
Mostly, the use of the term vicinal is restricted to two identical functional groups. The vicinal adjective is sometimes restricted to those molecules with two identical functional groups.
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Upjohn dihydroxylation
The Upjohn dihydroxylation is an organic reaction which converts an alkene to a cis vicinal diol. It was developed by V. VanRheenen, R. C. The Upjohn dihydroxylation is still often used for the formation of cis-vicinal diols; however, it can be slow and is prone to ketone byproduct formation
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Pinacol
It is a diol that has hydroxyl groups (-OH) on vicinal carbon atoms. See also
Semipinacol rearrangement
References
Alkanediols
Vicinal diols
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2,3-Dihydroxy-3-methylpentanoic acid
Alpha hydroxy acids
Vicinal diols
Beta hydroxy acids
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国家邻区铁路公司
参考文献
外部链接
照片档案
Tram Travels: Vicinal tramway (NMVB/SNCV)
比利时有轨电车
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Hydrindantin
References
Reagents for organic chemistry
Vicinal diols
Indandiones
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Vicinal difunctionalization
Vicinal difunctionalization refers to a chemical reaction involving transformations at two adjacent centers (most commonly carbons). Introduction
Vicinal difunctionalization reactions, most generally, lead to new bonds at two adjacent carbon atoms.
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Diol
Vicinal diols
In a vicinal diol, the two hydroxyl groups occupy vicinal positions, that is, they are attached to adjacent atoms. Vicinal diols
In glycol cleavage, the C−C bond in a vicinal diol is cleaved with formation of ketone or aldehyde functional groups.
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ASVi museum
The ASVi is a tramway museum in Thuin in Belgium, which specialises in the history of the Belgian narrow gauge Vicinal system. From Avenue de la Couture, a section of the former vicinal runs down Grand'Rue to the lower part of Thuin on the banks of Sambre.
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Hydroxylated lecithin
The epoxides react further with water, organic acid, or peroxy acid, to ultimately form vicinal diols. Because the natural fatty acid olefins have (Z)-configurations, the resulting vicinal diols have anti stereochemical configurations.
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Sodium periodate
Because the process requires vicinal diols, periodate oxidation is often used to selectively label the 3′-ends of RNA (ribose has vicinal diols) instead of DNA as deoxyribose does not have vicinal diols.
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