Search results
Results from the WOW.Com Content Network
Phenylboronic acid participates in numerous cross coupling reactions where it serves as a source of a phenyl group. One example is the Suzuki reaction where, in the presence of a Pd(0) catalyst and base, phenylboronic acid and vinyl halides are coupled to produce phenyl alkenes . [ 7 ]
Boiling point (°C) K b (°C⋅kg/mol) Freezing point (°C) K f (°C⋅kg/mol) Data source; Aniline: 184.3 3.69 –5.96 –5.87 K b & K f [1] Lauric acid: 298.9 44 –3.9 Acetic acid: 1.04 117.9 3.14 16.6 –3.90 K b [1] K f [2] Acetone: 0.78 56.2 1.67 –94.8 K b [3] Benzene: 0.87 80.1 2.65 5.5 –5.12 K b & K f [2] Bromobenzene: 1.49 156.0 6. ...
This compound then oxidized in air to form ethylboronic acid. [6] [7] [8] Several synthetic routes are now in common use, and many air-stable boronic acids are commercially available. Boronic acids typically have high melting points. They are prone to forming anhydrides by loss of water molecules, typically to give cyclic trimers.
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.
Melting point: 164–165 °C (327–329 °F; 437–438 K) ... the Suzuki coupling of phenylboronic acid with 4-iodophenol in the presence of 10 ... is very slightly ...
(3902.0 °C) Pu 3508.15 K (3235.0 °C) Am 2880 K (2607 °C) Cm 3383 K (3110 °C) Bk 2900 K (2627 °C) Cf 1743 K (1470 °C) Es 1269 (996 °C) Fm Md No Legend: Values are in kelvin K and degrees Celsius °C, rounded For the equivalent in degrees Fahrenheit °F, see: Boiling points of the elements (data page) Some values are predictions
Ice cubes put in water will start to melt when they reach their melting point of 0 °C. The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure ...
This is a list of the various reported boiling points for the elements, with recommended values to be used elsewhere on Wikipedia. ... 332.0 K: 58.8 °C: 137.8 °F ...