00:04
The concept and the region, the alelic bromination.
00:17
Bromination is the replacement of hydrogen atom by the bromine atom, bromine atom at alleleic position.
00:29
And the allelic position is adjust to carbon position, carbon position to the double bond, to the double bond nbs, nvs means n bromosexenamide.
01:01
N bromosaxenemite is used for bromination at an alkalic position in the presence of per oxide, per oxide light or heat.
01:16
And the next e2 elimination react is a bi -molecular elimination elimination.
01:24
Bi -molecular elimination reaction and this elimination reaction is a single, single step process, is a single step process which follow the concentrated mechanism.
01:56
In e2 elimination reaction, the intermediate is a transition state fundamental, and the bromination undergo through a free radical mechanism by nbs in the presence of per oxide or heat.
02:28
Nbs is catalyzed by hbr which present in nbs as a small quantity.
02:38
That is how the direct bromination double bond is controlled ccl ccl for act as a solvent in this reaction this reaction undergoes a radical chain reaction to consist many three step and in the first step is initiation and the second step is propagation and and the third step is termination.
03:21
So e2 elimination reaction, the rate of the reaction depend upon the base of substance.
03:26
So the e2 elimination reaction is known as bi -molecular elimination reaction.
03:39
Biomolecular elimination reaction rate proportional to substrate base...