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Cyclopentanone is common precursor to fragrances, especially those related to jasmine and jasmone. Examples include 2-pentyl- and 2-heptylcyclopentanone. [4] It is a versatile synthetic intermediate, being a precursor to cyclopentobarbital. [5] Cyclopentobarbital, a drug made from cyclopentanone
2-Cyclopentenones can be synthesized in a number of ways. One of the routes involves elimination of α-bromo-cyclopentanone using lithium carbonate [2] and Claisen condensation-decarboxylation-isomerization cascades of unsaturated diesters as shown below. [3] Industrial synthesis of cyclopentenone
For instance, the reaction of cyclopentanone with diazomethane forms cyclohexanone (shown below). The Büchner ring expansion reactions utilizing diazoalkanes have proven to be synthetically useful as they can not only be used to form 5- and 6-membered rings, but also more unstable 7- and 8-membered rings. [27]
Cyclopentanone: Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). ...
SU-8 3000 series resists also use cyclopentanone for the primary solvent and are designed to be spun into thicker films ranging from 2 to 75 μm in a single coat. [14] SU-8 GLM2060 series of low-stress photoresist consist of epoxy GBL and silica formulation CTE 14. [15] SU-8 GCM3060 Series of GERSTELTEC conductive SU8 with nanoparticles of ...
Cyclopentene was first prepared by Carl Gärtner in 1893 from iodocyclopentane with potassium hydroxide.He named it pentamethenylene (German: Pentamethenylen). [3] ...
Cyclopentanone This page was last edited on 18 July 2023, at 20:53 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 ...
A more approachable laboratory synthesis of disubstituted cubane involves bromination of the ethylene ketal of cyclopentanone to give a tribromocyclopentanone derivative. Subsequent steps involve dehydrobromination, Diels-Alder dimerization, etc. [9] [10] Alternative synthesis of a disubstituted cubane