The rapid disappearance of the amber color of the bromine at room temperature is characteristic of reaction with alkenes. (colorless) (purple) (colorless) (brown ppt.) Reaction of an alkene with ...

Bromine water is an orange solution of bromine. It becomes colourless when it is shaken with an alkene. Alkenes can decolourise bromine water, but alkanes cannot. The slideshow shows this process.

This causes a smoky flame. Alkenes have a functional group C=C – the part of the molecule that takes part in reactions. Alkanes, in contrast, do not have a functional group and are less reactive ...

An unsolved challenge in catalysis is the efficient and selective functionalization of simple alkanes and plentiful hydrocarbon feedstocks. One promising approach since the late 1990’s is the use of ...

The researchers used an easily accessible and reusable chemical called vinyl ketone as the "olefination reagent" to help ...

This chemical reaction occurs without sunlight and produces ... and RO₂), which then accelerate O₃ production. Ultimately, alkenes contributed to nearly 90% of the O₃ during the episodes.

This review summarizes the catalytic performance of various metal-based catalysts in the CO2-assisted oxidative dehydrogenation of light alkanes, with the goal of identifying catalyst systems that ...