Can you propose a mechanism for the problems b,d, and f? I've also included the answers for the products that the reactions make, I'm just confused with the mechanisms. 19-39(a)(d)N1) LiAlH42) H₂OHO CNfrom the first step(b)For a reminder on why fluorideis such a good leaving group innuc. aromatic subst., see thesolution to 17-21 or 19-55(b).OCH₂CH3HỌ CHÍNH,(e)O(c)NO₂(f)Brmajor product-Hofmann orientation (b)(d)(f)4-fluoropyridinebutan-2-oneNaOCH₂CH3(1) KCN, HCN(2) LIAIH42-bromopentane(1) (CH3)3N:(2) Ag₂O, heat

1)In 1st reaction Sodium have a positive charge And OCH2CH3 have the positive charge Now Carbon…

Answered: (b) (d) (f) 4-fluoropyridine…

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ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

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Can you propose a mechanism for the problems b,d, and f? I've also included the answers for the products that the reactions make, I'm just confused with the mechanisms.

19-39
(a)
(d)
N
1) LiAlH4
2) H₂O
HO CN
from the first step
(b)
For a reminder on why fluoride
is such a good leaving group in
nuc. aromatic subst., see the
solution to 17-21 or 19-55(b).
OCH₂CH3
HỌ CHÍNH,
(e)
O
(c)
NO₂
(f)
Br
major product-
Hofmann orientation

(b)
(d)
(f)
4-fluoropyridine
butan-2-one
NaOCH₂CH3
(1) KCN, HCN
(2) LIAIH4
2-bromopentane
(1) (CH3)3N:
(2) Ag₂O, heat

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