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Taber's reagent was created as an alternative to the Ohira-Bestmann reagent since its precursor, dimethyl 2-oxopropylphosphonate, is very expensive, which prevents large-scale reactions. Structurally, Taber's reagent is almost identical to the Ohira-Bestmann reagent, but with a bulkier acyl group ( phenyl group as opposed to methyl group ) on ...
Phenacyl bromide is the organic compound with the formula C 6 H 5 C(O)CH 2 Br. This colourless solid is a powerful lachrymator as well as a useful precursor to other organic compounds. It is prepared by bromination of acetophenone: [2] C 6 H 5 C(O)CH 3 + Br 2 → C 6 H 5 C(O)CH 2 Br + HBr. The compound was first reported in 1871. [3]
Molar mass: 173.02 g/mol 1: Physical state: liquid solid Melting point: 3–7 °C [1] 28–32 °C [2] 61–64 °C [3] Boiling point: 195–196 °C [1] 236 °C [2] 235 ...
Acetophenone is formed as a byproduct of the cumene process, the industrial route for the synthesis of phenol and acetone.In the Hock rearrangement of isopropylbenzene hydroperoxide, migration of a methyl group rather than the phenyl group gives acetophenone and methanol as a result of an alternate rearrangement of the intermediate:
The molar mass of atoms of an element is given by the relative atomic mass of the element multiplied by the molar mass constant, M u ≈ 1.000 000 × 10 −3 kg/mol ≈ 1 g/mol. For normal samples from Earth with typical isotope composition, the atomic weight can be approximated by the standard atomic weight [ 2 ] or the conventional atomic weight.
Molar mass: 157.010 g·mol −1 Appearance Colourless liquid Odor: ... Solubility in water. 0.041 g/100 mL Solubility: soluble in diethyl ether, alcohol, CCl 4
1-Bromo-2-propanone α-Bromoacetone Acetonyl bromide Acetyl methyl bromide ... Molar mass: 136.976 g·mol −1 Appearance Colorless liquid Density: 1.634 g/cm 3:
This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.