o Ph P Draw the alkene product of this Wittig reaction. ***** • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • Consider E/Z stereochemistry of alkenes. • Include H atoms at chiral centers only. • If a group is achiral, do not use wedged or hashed bonds on it. • Do not include lone pairs in your answer. They will not be considered in the grading. Y COOH [ ] در ?
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.
Nn.94.
Subject :- Chemistry
![Ph P
Draw the alkene product of this Wittig reaction.
I...
• Use the wedge/hash bond tools to indicate stereochemistry where it exists.
• Consider E/Z stereochemistry of alkenes.
• Include H atoms at chiral centers only.
• If a group is achiral, do not use wedged or hashed bonds on it.
• Do not include lone pairs in your answer. They will not be considered in the grading.
Y
COOH
[ ] در
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