A b d In each of the following reactions, identify the substrate and reagent. Classify the substrate as primary, secondary or tertiary alkyl halide. Categorize the reagent as a nucleophile or a base, and then indicate if it is strong or weak. Lastly, predict the MAJOR pathway for the reaction (SN2, E2, SN1, E1). CHECK ALL THAT APPLY. Substrate Reagent Classification □ Nucleophile Base Strong Weak N/A Nucleophile Base Strong Weak 2 Br G Alkyl Halide Classification 1 02" CUKO 0 3⁰ ON/A 81 02 0 3° ON/A 0 0 ✓ 1' 2° 3 NAV 1 02 0 3° ON/A Reagent 0- NGOH OH big bolley MeOH OH H₂O 0- 0 0 0 0 X N/A ON/A +1 Nucleophile Base Strong Weak +0 0 N/A Nucleophile Base Strong Weak +1 Reaction Pathway SN2 OSN1 E2 0 E1 75E2 0 No reaction SN2 SN1 +2 SN2 □ SN1 XE2 ロロ to E1 No reaction +0 O E1 DNo reaction SN2 □ SN1 OE2 E1 No reaction to
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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