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137-43-9 3D model ... Bromocyclopentane is a derivative of cyclopentane, an alkyl halide with the chemical formula C 5 H 9 Br. It is a colorless to light yellow ...
The enantioselective synthesis was accomplished by J. K. Whitesell by adding Pseudomonas fluorescens lipase to racemic trans-2-phenylcyclohexyl chloroacetate. [1] [2] This enzyme is able to hydrolyze the ester bond of the (−)-enantiomer but not the (+)-enantiomer.
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Cyclopentane is a minor component of automobile fuel, with its share in US gasoline varying between 0.2 and 1.6% in early 1990s [8] and 0.1 to 1.7% in 2011. [9] Its research and motor octane numbers are reported as 101 or 103 and 85 or 86 respectively.
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Anthracene-9-carbaldehyde is the most common monoaldehyde derivative of anthracene. It is a yellow solid that is soluble in common organic solvents. It is prepared by Vilsmeier formylation of anthracene. [1] [2] The compound is also used as a building block for supramolecular assemblies. [3]
[9] [10] One estimate puts the percentage of ionic character of alkyllithium compounds at 80 to 88%. [ 11 ] In allyl lithium compounds, the lithium cation coordinates to the face of the carbon π bond in an η 3 fashion instead of a localized, carbanionic center, thus, allyllithiums are often less aggregated than alkyllithiums.
This is an accepted version of this page This is the latest accepted revision, reviewed on 27 January 2025. Periodic table of the elements with eight or more periods Extended periodic table Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium ...