5. In a recent synthetic effort toward the Dysiherbols A-C, synthetic intermediate 4 was prepared in a series of reactions starting from the four compounds shown in the equation below. OCH3 OCH 3 Br OH CI OH steps 'Bu(CH3)2SiO OCH3 OCH 3 4 Outline a synthetic scheme by which you would carry out this synthesis starting from the given compounds and using any other reagents and solvents of synthetic organic chemistry that you may need. In your scheme, give the full structure of any reagents that you propose to use and any side products that form. MECHANISM IS NOT REQUIRED.

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5. In a recent synthetic effort toward the Dysiherbols A-C, synthetic intermediate 4 was
prepared in a series of reactions starting from the four compounds shown in the equation
below.
OCH3
OCH 3
Br
LOH
-6-
OH
steps
Bu(CH3)2SiO
OCH3
OCH 3
4
Outline a synthetic scheme by which you would carry out this synthesis starting from the
given compounds and using any other reagents and solvents of synthetic organic chemistry
that you may need. In your scheme, give the full structure of any reagents that you propose to
use and any side products that form. MECHANISM IS NOT REQUIRED.
Transcribed Image Text:5. In a recent synthetic effort toward the Dysiherbols A-C, synthetic intermediate 4 was prepared in a series of reactions starting from the four compounds shown in the equation below. OCH3 OCH 3 Br LOH -6- OH steps Bu(CH3)2SiO OCH3 OCH 3 4 Outline a synthetic scheme by which you would carry out this synthesis starting from the given compounds and using any other reagents and solvents of synthetic organic chemistry that you may need. In your scheme, give the full structure of any reagents that you propose to use and any side products that form. MECHANISM IS NOT REQUIRED.
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