Give major products for 1,2-/1,4-additions (A) Diels-Alder (B-D) cycloadditions [2+2] cycloadditions , and Retro-Diels-Alder (E) cycloaddition. Illustrate the regiochemistry and stereochemistry (me so, enatiomer., exo or Endo) for cycloadditions B-D? (A)H-Br60°CH-Brउ0 ्टCOOH60°C(B)cO,H$OH80°C(C)COM.70 C(D)COM.[2+2],(E)light(F)(Retro Diels-Alder)(A): (5 pts) light(F)(Retro Diels-Alder)Illustrate the mechanism for the formation of 1,2- and 1,4-addition products (A)21) First count the number of p-electro:delocalization and then predict whetherromatic" or “non-aromatic"all bas

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Answered: H-Br (A) H-Br 60 C 60°C - .C- (B) 80°C…

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H-Br (A) H-Br 60 C 60°C - .C- (B) 80°C く.- (C)

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter4: Polar Bonds, Polar Reactions

Section: Chapter Questions

Problem 30CTQ: According to the conventions above, what is the sign ( + or ) of the P.E. change (H) for Rxn 3?

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Concept explainers

Stereochemistry and Isomerism

Stereochemistry deals with the three-dimensional structure and properties of molecules. It explains the arrangement of atoms and their manipulation within a molecule in a 3D structure. Stereochemistry can be dealt with all types of molecules. Based on the stereochemistry of a molecule, the physical and chemical properties of the molecules vary.

Question

Give major products for 1,2-/1,4-additions (A) Diels-Alder (B-D) cycloadditions [2+2] cycloadditions , and Retro-Diels-Alder (E) cycloaddition. Illustrate the regiochemistry and stereochemistry (me so, enatiomer., exo or Endo) for cycloadditions B-D?

(A)
H-Br
60°C
H-Br
उ0 ्ट
COOH
60°C
(B)
cO,H
$OH
80°C
(C)
COM.
70 C
(D)
COM.
[2+2],
(E)
light
(F)
(Retro Diels-Alder)
(A): (5 pts)

light
(F)
(Retro Diels-Alder)
Illustrate the mechanism for the formation of 1,2- and 1,4-addition products (A)
21) First count the number of p-electro:
delocalization and then predict whether
romatic" or “non-aromatic
"all bas

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