WebNaphthalene can be hydrogenated under high pressure or with a suitable catalyst to give 1,2,3,4-tetrahydronaphthalene, a solvent sold under the trade name Tetralin. Additional hydrogenation produces decahydronaphthalene or decalin (C … Web15 dec. 2024 · alpha-Naphthol - Reference Information. naphthol is a compound in which one hydrogen atom on the naphthalene ring is substituted with a hydroxyl group. There are two isomers of α-and β-naphthol, also called 1-naphthol and 2-naphthol. The molecular formula is C10H7OH, and the structural formula is shown in the figure.
Selective Hydrogenation of Naphthalene to Decalin Over Surface ...
Web12 dec. 2024 · Naphthol. Naphthol is an organic compound derived from naphthalene. It is commonly found in dyes used for textiles and also used in many other areas of manufacturing goods. The chemical formula of ... Naphthalene is an organic compound with formula C 10H 8. It is the simplest polycyclic aromatic hydrocarbon, and is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass. As an aromatic hydrocarbon, naphthalene's structure consists of a fused … Meer weergeven In the early 1820s, two separate reports described a white solid with a pungent odor derived from the distillation of coal tar. In 1821, John Kidd cited these two disclosures and then described many of this … Meer weergeven A naphthalene molecule can be viewed as the fusion of a pair of benzene rings. (In organic chemistry, rings are fused if they share two or more atoms.) As such, naphthalene … Meer weergeven Most naphthalene is derived from coal tar. From the 1960s until the 1990s, significant amounts of naphthalene were also produced from heavy petroleum fractions during petroleum refining, but present-day production is mainly from coal tar. Approximately … Meer weergeven • Camphor • Dialin, Tetralin, Decalin • List of interstellar and circumstellar molecules • Mothballs Meer weergeven Reactions with electrophiles In electrophilic aromatic substitution reactions, naphthalene reacts more readily than … Meer weergeven Naphthalene is used mainly as a precursor to derivative chemicals. The single largest use of naphthalene is the industrial production of phthalic anhydride, although more … Meer weergeven Exposure to large amounts of naphthalene may damage or destroy red blood cells, most commonly in people with the inherited condition known as glucose-6-phosphate dehydrogenase (G6PD) deficiency Meer weergeven gas heaters belmont
Donor Properties of Tetralin and Tetrahydroanthracene in the ...
WebNaphthalene can be hydrogenated (mainly to tetralin) to the extent of 75–80% on hydrogenating it at a hydrogen pressure of 20 atm, a temperature of 350–370dgC, and … WebFigure 9.1 on the next page shows examples of hydrogenation of an aromatic compound (alkylated naphthalene) and an olefin. The objective of hydrogenation is just adding hydrogen to unsaturated hydrocarbons using precious metal (Pt, Pd) or Ni catalysts at low temperatures to avoid cracking or other chemical changes. david bright attorney corpus christi