React the following with (a) Cl,, hv. Show all possible mono-chlorination products. Calculate percentag of products. 1. 4. React the following with (b) NBS, hv, CCI4. Indicate the major product if there are multiple possible. 7. OH React the alcohols 7-10 with all reagents (c)-(g). There may be some No Reaction (NR). This may be a good time to try doing a spider diagram. (c) HBr (d) HCI (e) HI (f) SOCI₂, Py (g) PBr3 11. 2. 8. 1. Li 1. Mg (h) Mg (i) 2. Cul (1) 2. H30+ CI 5. React alkyl halides 11-13 with all reagents (h)-(l). 1. Li (k) 2. Cul 3. CH3 Br ОН 12. 9. MgBr (1) 2. MB 1. Mg Br 3. -OH Br 6. 10. 13. OH
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.
![React the following with (a) Cl,, hv. Show all possible mono-chlorination products. Calculate percentag
of products.
1.
4.
React the following with (b) NBS, hv, CCI4. Indicate the major product if there are multiple possible.
7.
OH
React the alcohols 7-10 with all reagents (c)-(g). There may be some No Reaction (NR). This may be a
good time to try doing a spider diagram.
(c) HBr
(d) HCI (e) HI (f) SOCI₂, Py (g) PBr3
11.
2.
8.
1. Li
1. Mg
(h) Mg (i) 2. Cul (1) 2. H30+
CI
5.
React alkyl halides 11-13 with all reagents (h)-(l).
1. Li
(k) 2. Cul
3. CH3 Br
ОН
12.
9.
MgBr
(1) 2. MB
1. Mg
Br
3.
-OH
Br
6.
10.
13.
OH](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F637a8243-98d2-45ca-8dd1-4e9d7d0f97ca%2Fb248d0e1-802c-462d-b417-2b4750642438%2Fsvxj33.jpeg&w=3840&q=75)
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