E1

Question 1

Alpha & beta placement in E2?

Answer 1

Alpha is the center C & beta are the C’s surrounding the alpha

Question 2

SN1 vs E1

Answer 2

SN2: LG leaves & do a nucleophilic/general attack to carbocation to change the + charge on the carbocation to a + charge on the nucleophile & then (3) use the LG (charged neg) to deprotonate the nucleophile to get rid of charges
E1: LG leaves & the reagent deprotonates the molecule but the electron group forms a double bond

Question 3

SN2 Vs. E2

Answer 3

SN2: strong nucleophile makes a nucleophilic attack to the C at the same time the LG leaves
E2: base deprotonates & then those e- from the atom form a double bond between the C’s

Question 4

Weak bases make what type of nucleophile?

Answer 4

Neutral nucleophile

Question 5

What makes a base even weaker?

Answer 5

e- of the anion atoms are diffused/delocalized

Question 6

Stereoselective Reaction

Answer 6

A reaction where one molecule preferentially made over another stereoisomer

Question 7

Is SN1 selective? SN2?

Answer 7

SN1: No bc scrambling happens (racemic mixture)
SN2: Yes bc inversion happens

Question 8

Regioselective Reaction

Answer 8

One molecule is preferentially made over another constitutional isomer

Question 9

Which is more stable, cis or trans? Why?

Answer 9

Trans is more stable
Cis features higher priority groups on same side, which means there is greater steric strain & bond e- repulsion
Trans alleviates that strain & repulsion

Question 10

Which is more stable, more or less substitution?

Answer 10

More substitution (replace protons (H’s) with R groups)

Question 11

What is more stable, more or fewer alkyl groups bonded to carbocation C?

Answer 11

More

Question 12

What do you call the orbitals formed as a result of hyperconjugation?

Answer 12

Psi1, Psi 2, Psi3 or new sigma CH (or star or pi depending on location)

Question 13

How much heat of enthalpy will a more stable alkyl group have?

Answer 13

A smaller neg number (so in actuality, bigger)