4. Give the relationship between the indicated molecules. Your options are enantiomers, diastereomers, constitutional isomers, or the same molecule. OH 1 1 and 2: 2 and 3: 1 and 4: 3 and 4: 1 and 5: H3CCH₂CH3 хон 2 H- H- CH3 OH -CI CH₂CH3 3 H H3C H CI OH 4 CH₂CH3 H- CI CH₂CH3 -OH -H CH3 5
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.
- If the compounds have the same molecSame molecule has same configuration and same connectivity of groups.
- Enantiomers are isomers that are non-superimposable mirror images of each other and they have exact opposite absolute configuration.
- Diastereomers are isomers that are not mirror images of each other and they have same configuration at least 1 carbon and different configuration at least 1 carbon.
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