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The structure of a generic selenol. Selenols are organic compounds that contain the functional group with the connectivity C−Se−H. Selenols are sometimes also called selenomercaptans and selenothiols. Selenols are one of the principal classes of organoselenium compounds. [1] A well-known selenol is the amino acid selenocysteine.
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The diselenide can be converted back to the selenol by reduction followed by acidification of the resulting PhSe −. PhSeH is acidic with a pK a of 5.9. Thus at neutral pH, it is mostly ionized: PhSeH → PhSe − + H + It is approximately seven times more acidic than the related thiophenol. Both compounds dissolve in water upon the addition ...
Methaneselenol is the organoselenium compound with the formula C H 3 SeH.It is the simplest selenol.A colorless, poisonous gas, it is notorious for its foul, putrid odor. It is prepared by reaction of methyl lithium or a methyl Grignard reagent with selenium followed by protonation of the product.
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In a stable selenenic acid prepared by oxidizing a highly hindered selenol, BmtSeH, the Se-O bond length was found to be 1.808 Å while the O-Se-C angle was 96.90°. Oxidation of BmtSeOH gave BmtSeO 2 H. [5] Selenenic acids are believed to be transient intermediates in a number of redox reactions involving organoselenium compounds.
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