Scheme 2 Melli MeLi + CuBr THF 0°C L

Organic Chemistry
9th Edition
ISBN:9781305080485
Author:John E. McMurry
Publisher:John E. McMurry
Chapter30: Orbitals And Organic Chemistry: Pericyclic Reactions
Section30.SE: Something Extra
Problem 41AP: In light of your answer to Problem 30-40, explain why a mixture of products occurs in the following...
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Need help with part b). Thank you :)

 

Question 7
Three organometallic reagents are reacted with (R)-2-methyl-2,3-dihydro-4H-pyran-4-one to give
three different outcomes. Beside each scheme give the structure of H, L and K, upon quenching the
reaction with H+/H₂O, then provide reasons for your answers.
-8
Scheme 1
MeMgBr
H
THF
0°C
Mel!!!..
Scheme 2
MeLi + CuBr
L
THF
0°C
Scheme 3
SH University
Me₂NLi
К
THF
0°C
Mell
(a) My reason for the structure of H is...
(b) My reason for the structure of L is...
(c) My reason for the structure of K is...
Mell
Transcribed Image Text:Question 7 Three organometallic reagents are reacted with (R)-2-methyl-2,3-dihydro-4H-pyran-4-one to give three different outcomes. Beside each scheme give the structure of H, L and K, upon quenching the reaction with H+/H₂O, then provide reasons for your answers. -8 Scheme 1 MeMgBr H THF 0°C Mel!!!.. Scheme 2 MeLi + CuBr L THF 0°C Scheme 3 SH University Me₂NLi К THF 0°C Mell (a) My reason for the structure of H is... (b) My reason for the structure of L is... (c) My reason for the structure of K is... Mell
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