Classify the following alkyl halides (benzylic, allylic, vinyl, aryl, 3°, 2°, 1°, methyl or a combination that best describes the molecule). CH₂CH3 CH₂CH3 H Br CH₂CH3 F CI- Br CI H blank 6 blank 3 blank 4 blank 2 blank 5 blank 1 In each blank enter a one or two character code: 1st indicate if the halide is methyl, 1°, 2°, or 3° by typing: m, 1, 2, or 3 2nd indicate if the halide is benzylic, allylic, vinyl, or aryl by typing benzylic, allylic, vinyl, or aryl Do NOT put any spaces in your answer. For example, if 2° and vinyl type: 2vinyl, if just secondary type 2 H CH3 -CH₂CH3
Reactive Intermediates
In chemistry, reactive intermediates are termed as short-lived, highly reactive atoms with high energy. They rapidly transform into stable particles during a chemical reaction. In specific cases, by means of matrix isolation and at low-temperature reactive intermediates can be isolated.
Hydride Shift
A hydride shift is a rearrangement of a hydrogen atom in a carbocation that occurs to make the molecule more stable. In organic chemistry, rearrangement of the carbocation is very easily seen. This rearrangement can be because of the movement of a carbocation to attain stability in the compound. Such structural reorganization movement is called a shift within molecules. After the shifting of carbocation over the different carbon then they form structural isomers of the previous existing molecule.
Vinylic Carbocation
A carbocation where the positive charge is on the alkene carbon is known as the vinyl carbocation or vinyl cation. The empirical formula for vinyl cation is C2H3+. In the vinyl carbocation, the positive charge is on the carbon atom with the double bond therefore it is sp hybridized. It is known to be a part of various reactions, for example, electrophilic addition of alkynes and solvolysis as well. It plays the role of a reactive intermediate in these reactions.
Cycloheptatrienyl Cation
It is an aromatic carbocation having a general formula, [C7 H7]+. It is also known as the aromatic tropylium ion. Its name is derived from the molecule tropine, which is a seven membered carbon atom ring. Cycloheptatriene or tropylidene was first synthesized from tropine.
Stability of Vinyl Carbocation
Carbocations are positively charged carbon atoms. It is also known as a carbonium ion.
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