Halogenation is the result that occurs when a chemical is mixed with a halogen.
The process of halogenation is a chemical reaction between a compound, usually an organic compound and a halogen. An example of halogenation is fluorination or chlorination.
Bis allylic protons are nuclei of hydrogen atoms (bonded to the same carbon atom) that are in allylic positions with respect to two different C=C double-bonds. For example, the bolded hydrogen atoms in the structure below represent bis allylic protons, since they are in an allylic position with respect to the C=C bonds on both the left and the right.R-CH=CH-CH2-CH=CH-R
Halogenation
Well, darling, the reason direct halogenation of aniline is a big no-no is because aniline is a strong activating group that will make the halogenation reaction go haywire and give you a messy mixture of products. Plus, the lone pair on the nitrogen atom in aniline will coordinate with the halogenating agent, making it more selective towards other positions on the ring. So, in a nutshell, direct halogenation of aniline is a recipe for disaster in the lab.
short note on cyclones
The process of halogenation is a chemical reaction between a compound, usually an organic compound and a halogen. An example of halogenation is fluorination or chlorination.
The molecule under consideration has two allylic protons.
free-radical halogenation of acetic acid
Halogenation is typically carried out in an anti fashion.
Bis allylic protons refer to protons that are adjacent to two allylic carbons in a molecule. They are typically more deshielded and can show unique chemical shifts in the NMR spectrum due to their proximity to multiple double bonds.
Bis allylic protons are nuclei of hydrogen atoms (bonded to the same carbon atom) that are in allylic positions with respect to two different C=C double-bonds. For example, the bolded hydrogen atoms in the structure below represent bis allylic protons, since they are in an allylic position with respect to the C=C bonds on both the left and the right.R-CH=CH-CH2-CH=CH-R
Halogenation
The key difference between a vinylic carbon and an allylic carbon is their location in a molecule. A vinylic carbon is directly attached to a double bond, while an allylic carbon is next to a double bond. Allylic carbons are more reactive and have different chemical properties compared to vinylic carbons due to the presence of the double bond next to them.
Well, darling, the reason direct halogenation of aniline is a big no-no is because aniline is a strong activating group that will make the halogenation reaction go haywire and give you a messy mixture of products. Plus, the lone pair on the nitrogen atom in aniline will coordinate with the halogenating agent, making it more selective towards other positions on the ring. So, in a nutshell, direct halogenation of aniline is a recipe for disaster in the lab.
The pKa of an allylic hydrogen is typically around 44-45, which is higher than other types of hydrogens in organic molecules. This means that allylic hydrogens are less acidic compared to other hydrogens, such as those in alcohols or carboxylic acids.
short note on GAAP
short note on "League of Nation"