[oConsider the reaction scheme below.MeMeof 210210COMI20OHHolaHolensal,d bus9(ii) Explain briefly the observed regioselectivity.Iviz gniw11toshsvo beiniinoo noitz9H® (cat.)With reference to the following reaction scheme:[monqo 1250 901 ayawis luna nobrMeNaBH4, Et₂O(i) Draw a curved arrow mechanism to explain the transformation of 9 into 10.of mainMe101 anoitiba HoHOMe, OMe10100 10 Stone &arq tot abortom saogoatowens 1004 Viitzut vford breooort mott gnis2 H)osogor (1)MeMiel Me12*OH(i) Draw Newman projections for the two lowest energy conformations of ketone 11.(ii) Considering your answer to part (i), identify which is the most reactive conformationof 11 and explain your choice.(iii) Indicate the stereochemistry (at C*) of the major diastereoisomer of alcohol 12. Useappropriate strereochemical drawings to explain your answer.

Answered: Image /qna-images/answer/be87cb0f-aab5-4c63-aeff-4e14ce9fa8df.jpg

Consider the reaction scheme below. Me Me- 0 1970 butto Holament 9 COMI20 OH (ii) Explain briefly the observed regioselectivity. ivile garwol 11 Sa With reference to the following reaction scheme: [monqo lead out ayawin lon an Me HⓇ (cat.) (i) Draw a curved arrow mechanism to explain the transformation of 9 into 10. Totement oni 1011 Me Me, NaBH4, Et₂O Me HO 10 Tot abortom seogool ens Tuo viileu fond bre ont mort guma2 mmH Me 12 Me OH (i) Draw Newman projections for the two lowest energy conformations of ketone 11. (ii) Considering your answer to part (i), identify which is the most reactive conformation of 11 and explain your choice. (iii) Indicate the stereochemistry (at C*) of the major diastereoisomer of alcohol 12. Use appropriate strereochemical drawings to explain your answer.

Consider the reaction scheme below. Me Me- 0 1970 butto Holament 9 COMI20 OH (ii) Explain briefly the observed regioselectivity. ivile garwol 11 Sa With reference to the following reaction scheme: [monqo lead out ayawin lon an Me HⓇ (cat.) (i) Draw a curved arrow mechanism to explain the transformation of 9 into 10. Totement oni 1011 Me Me, NaBH4, Et₂O Me HO 10 Tot abortom seogool ens Tuo viileu fond bre ont mort guma2 mmH Me 12 Me OH (i) Draw Newman projections for the two lowest energy conformations of ketone 11. (ii) Considering your answer to part (i), identify which is the most reactive conformation of 11 and explain your choice. (iii) Indicate the stereochemistry (at C*) of the major diastereoisomer of alcohol 12. Use appropriate strereochemical drawings to explain your answer.

Chemistry

10th Edition

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Aromatic Compounds

Aromatic organic compound or aromatic system is an important class of hydrocarbons under the branch of organic chemistry. Aromatic compounds are also called arenas. The definition of aromatic organic compounds can be stated as a class of organic compounds with a planar cyclic ring of atoms bonded through alternated single and double bonds. Due to these alternating bonds, a peculiar feature termed as ‘resonance’, that is, delocalization of pi electrons or the electrons is shared within the atoms of the ring which are present in the aromatic compounds. The word ‘aromatic’ includes a Greek word ‘aroma’ which means smell, indicating that they were named as such due to the sweet odor they produce. Many well-known flavors such as vanilla, cinnamon, and few scents from flowers are extracted from aromatic compounds. Benzene with chemical formula C6H6 is a very common aromatic compound that contains six atoms of carbon held in the cyclic ring of alternate double bonds. It is also to be noted that not all aromatic compounds contain benzene ring. This can be explained by Huckel’s rule.

Question

[o
Consider the reaction scheme below.
Me
Me
of 210
210
COMI20
OH
Hola
Holensal,d bus
9
(ii) Explain briefly the observed regioselectivity.
Iviz gniw
11
toshsvo beiniinoo noitz9
H® (cat.)
With reference to the following reaction scheme:
[monqo 1250 901 ayawis luna no
br
Me
NaBH4, Et₂O
(i) Draw a curved arrow mechanism to explain the transformation of 9 into 10.
of main
Me
101 anoitiba Ho
HO
Me, O
Me
10
100 10 Stone &
arq tot abortom saogo
atowens 1004 Viitzut vford bre
ooort mott gnis2 H)
osogor (1)
Me
Miel Me
12
*
OH
(i) Draw Newman projections for the two lowest energy conformations of ketone 11.
(ii) Considering your answer to part (i), identify which is the most reactive conformation
of 11 and explain your choice.
(iii) Indicate the stereochemistry (at C*) of the major diastereoisomer of alcohol 12. Use
appropriate strereochemical drawings to explain your answer.

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