Selenol

Selenol

In organic chemistry, a selenol is a chemical compound that contains the functional group composed of a selenium atom bonded to a hydrogen atom (-SeH). Volatile molecular weight selenols have highly offensive odors and are easily oxidized to diselenides, compounds containing an Se-Se bond. The essential amino acid selenocysteine is a rare naturally occurring selenol. Benzeneselenol (selenophenol) is one of the more common selenols used in organic synthesis, its oxidized derivative is diphenyl diselenide.
Benzeneselenol is easily prepared by the reaction of the Grignard reagent of bromo benzene with selenium powder. [D. G. Foster, "Organic Syntheses" 24 (1944); 89] Its oxidation by Br2 yields diphenyl diselenide.
A common way for the preparation of selenols is the nucleophilic substitution of a leving group like an alkyl bromide by seleno urea, and subsequent hydrolysis.

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Selenol — Estructura de un grupo selenol típico. La L …   Wikipedia Español

  • Selenol — Selenole sind die Selenanaloga von Thiolen (R S H) und Alkoholen (R O H), sie haben die allgemeine Formel R Se H. Man kann die Selenole auch als Monosubstitutionsprodukte des Selenwasserstoffs betrachten. Selenocystein ist eine Aminosäure, die… …   Deutsch Wikipedia

  • selenol — noun any compound, of general formula RSeH, the selenium analogues of alcohols …   Wiktionary

  • -selenol — se|le|nol [↑ Selen u. ↑ ol (1)]: Suffix für die Gruppierung SeH in systematischen Namen von selenorg. Verb., die Alkoholen u. Phenolen entsprechen, z. B. Ethanselenol (H3C CH2 SeH) …   Universal-Lexikon

  • Organoselenium chemistry — Organoselenium compounds are chemical compounds containing carbon to selenium chemical bonds. Organoselenium chemistry is the corresponding science exploring their properties and reactivity.[1][2][3][4] Selenium belongs with oxygen and sulfur to… …   Wikipedia

  • Groupe fonctionnel — En chimie organique, un groupe fonctionnel est une structure sub moléculaire constituée d un assemblage d atomes donnés qui confère une réactivité propre à la molécule qui le contient. Cette manière de considérer les molécules comme étant un… …   Wikipédia en Français

  • Compuesto de organoselenio — Fórmula estructural de la droga psicodélica 2C SE, perteneciente a las fenetilaminas Los compuestos de organoselenio son compuestos químicos que contienen enlaces químicos entre átomos de carbono y de selenio. La química de organoselenio es la… …   Wikipedia Español

  • IUPAC nomenclature of organic chemistry — The IUPAC nomenclature of organic chemistry is a systematic method of naming organic chemical compounds as recommended[1] by the International Union of Pure and Applied Chemistry (IUPAC). Ideally, every possible organic compound should have a… …   Wikipedia

  • Carbonyldiimidazole — Carbonyldiimidazole …   Wikipedia

  • Grieco elimination — The Grieco elimination is an organic reaction describing the elimination reaction of an aliphatic primary alcohol through a selenide to a terminal alkene Ref|GriecoRef|Sharpless. The alcohol first reacts with o nitrophenylselenocyanate and… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”