Question 17 Why does product A form faster than product B? (three correct answers) KCI + H₂O ད་ KOH KOH KCI + FASTER SLOWER H₂O B A) In an unfavourable conformation of the starting material, A can form from a favourable transition state B B can form from a more favourable transition state The elimination reaction requires a trans-coplanar arrangement of a C-H and and a C-Cl bond The bulky tert-butyl group prefers an equatorial conformation Question 18 What happens when an alkene is treated with an aqueous solution of potassium permanganate? A No reaction will take place. B) It will form an alcohol. It will form an alkane. D It will form a diol. Question 19 What is the stereoelectronic requirement for this reaction? (three correct answers) Br KOMe + KBr + MeOH (A) Equatorial arrangement of a hydrogen and the leaving bromide Ⓑ trans-coplanar arrangement of a hydrogen and the leaving bromide Anti-periplanar arrangement of a hydrogen and the leaving bromide A conformation with the bromine axial
Question 17 Why does product A form faster than product B? (three correct answers) KCI + H₂O ད་ KOH KOH KCI + FASTER SLOWER H₂O B A) In an unfavourable conformation of the starting material, A can form from a favourable transition state B B can form from a more favourable transition state The elimination reaction requires a trans-coplanar arrangement of a C-H and and a C-Cl bond The bulky tert-butyl group prefers an equatorial conformation Question 18 What happens when an alkene is treated with an aqueous solution of potassium permanganate? A No reaction will take place. B) It will form an alcohol. It will form an alkane. D It will form a diol. Question 19 What is the stereoelectronic requirement for this reaction? (three correct answers) Br KOMe + KBr + MeOH (A) Equatorial arrangement of a hydrogen and the leaving bromide Ⓑ trans-coplanar arrangement of a hydrogen and the leaving bromide Anti-periplanar arrangement of a hydrogen and the leaving bromide A conformation with the bromine axial
Chapter30: Orbitals And Organic Chemistry: Pericyclic Reactions
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Transcribed Image Text:Question 17
Why does product A form faster than product B? (three correct answers)
KCI
+
H₂O
ད་
KOH
KOH
KCI
+
FASTER
SLOWER
H₂O
B
A) In an unfavourable conformation of the starting material, A can form from a favourable transition state
B B can form from a more favourable transition state
The elimination reaction requires a trans-coplanar arrangement of a C-H and and a C-Cl bond
The bulky tert-butyl group prefers an equatorial conformation
Question 18
What happens when an alkene is treated with an aqueous solution of potassium permanganate?
A No reaction will take place.
B) It will form an alcohol.
It will form an alkane.
D It will form a diol.
Question 19
What is the stereoelectronic requirement for this reaction? (three correct answers)
Br
KOMe
+ KBr + MeOH
(A) Equatorial arrangement of a hydrogen and the leaving bromide
Ⓑ trans-coplanar arrangement of a hydrogen and the leaving bromide
Anti-periplanar arrangement of a hydrogen and the leaving bromide
A conformation with the bromine axial
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