Alkene Reactions: III
Using the drawing pallet on the right, draw the structure of the major
organic product for the reaction shown below:
The reaction of an alkene with BH3 in THF proceeds through
the formation of an organo-borane intermediate with the boron bonded
adjacent to the alkene carbon which would form the most
stable carbocation (anti-Markovnikov addition). Work-up with
alkaline peroxide results in the formation of an
anti-Markovnikov alcohol with overall cis stereochemistry
for the addition of H-OH.
Using the drawing pallet on the right, draw the structure of the major
organic product for the reaction shown below:
The reaction of an alkene with H2 in the presence of a
catalyst such as Pt or Pd, results in the reduction of the alkene to
give the corresponding alkane.
Using the drawing pallet on the right, draw the structure of the major
organic product for the reaction shown below:
The reaction of an alkene with OsO4 proceeds through the
formation of a osmium diester intermediate in which two of the osmium
oxygens are bonded to the carbons of the alkene. Work-up with bisulfite
results in the formation of a glycol (a 1,2-diol) with cis
stereochemistry. The same products are obtained from reaction with
alkaline KMnO4; this latter reaction does not require
bisulfite work-up and proceeds through the formation of a permanganate
diester, as above.
Using the drawing pallet on the right, draw the structure of the major
organic product for the reaction shown below:
The reaction of an alkene with BH3 in THF proceeds through
the formation of an organo-borane intermediate with the boron bonded
adjacent to the alkene carbon which would form the most
stable carbocation (anti-Markovnikov addition). Work-up with
alkaline peroxide results in the formation of an
anti-Markovnikov alcohol with overall cis stereochemistry
for the addition of H-OH.
Using the drawing pallet on the right, draw the structure of the major
organic product for the reaction shown below:
The reaction of an alkene with H2 in the presence of a
catalyst such as Pt or Pd, results in the reduction of the alkene to
give the corresponding alkane.
Using the drawing pallet on the right, draw the structure of the major
organic product for the reaction shown below:
The reaction of an alkene with OsO4 proceeds through the
formation of a osmium diester intermediate in which two of the osmium
oxygens are bonded to the carbons of the alkene. Work-up with bisulfite
results in the formation of a glycol (a 1,2-diol) with cis
stereochemistry. The same products are obtained from reaction with
alkaline KMnO4; this latter reaction does not require
bisulfite work-up and proceeds through the formation of a permanganate
diester, as above.
Using the drawing pallet on the right, draw the structure of the major
organic product for the reaction shown below:
The reaction of an alkene with H2 in the presence of a
catalyst such as Pt or Pd, results in the reduction of the alkene to
give the corresponding alkane.
Using the drawing pallet on the right, draw the structure of the major
organic product for the reaction shown below:
The reaction of an alkene with OsO4 proceeds through the
formation of a osmium diester intermediate in which two of the osmium
oxygens are bonded to the carbons of the alkene. Work-up with bisulfite
results in the formation of a glycol (a 1,2-diol) with cis
stereochemistry. The same products are obtained from reaction with
alkaline KMnO4; this latter reaction does not require
bisulfite work-up and proceeds through the formation of a permanganate
diester, as above.
Using the drawing pallet on the right, draw the structure of the major
organic product for the reaction shown below:
The reaction of an alkene with BH3 in THF proceeds through
the formation of an organo-borane intermediate with the boron bonded
adjacent to the alkene carbon which would form the most
stable carbocation (anti-Markovnikov addition). Work-up with
alkaline peroxide results in the formation of an
anti-Markovnikov alcohol with overall cis stereochemistry
for the addition of H-OH.
Using the drawing pallet on the right, draw the structure of the major
organic product for the reaction shown below:
The reaction of an alkene with alkaline KMnO4 proceeds
through the formation of a permanganate diester intermediate in which
two of the manganate oxygens are bonded to the carbons of the alkene.
Spontaneous hydrolysis of this intermediate results in the formation of
a glycol (a 1,2-diol) with cis stereochemistry. The same
products are obtained from reaction with OsO4; this latter
reaction also requires work-up with bisulfite and proceeds through the
formation of an osmium diester, as above.
That is correct!
Sorry, that is not correct. You should modify your structures
and try again. If cis-trans- stereochemistry is required,
please make sure you have drawn the appropriate isomer using the "wedge
bonds".
Note: Stereochemistry is shown using the
"wedge" bond.
Click on the solid wedge to reverse orientation.
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