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Chapter 12: PROBLEM 12.33 (page 487)

Question: Draw the organic products formed when each alkene is treated with H2 / Pd-C. Indicate the three-dimensional structure of all stereoisomers formed.

a.

b.

c.

Short Answer

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Answer

a.

b.

c.

Step by step solution

01

Reduction with  H2 / Pd-C

Alkenes can be reduced to an alkane using the method of catalytic hydrogenation. The Pd acts as a catalyst and leads to the syn-addition of hydrogen.A general reaction is given below:

Catalytic hydrogenation of alkene

02

Determination of products

a.

3-D structures of the product formed upon reduction of a

b.

3-D structures of the product formed upon reduction of b

c.

3-D structures of the product formed upon reduction of c

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Most popular questions from this chapter

Question: One step in the degradation of fats involves the reaction of (R)-glycerol phosphate with NAD+ in the presence of the enzyme glycerol phosphate dehydrogenase. What products are formed if reaction occurs only at the 2° alcohol.

Question: The Birch reduction is a dissolving metal reaction that converts substituted benzenes to cyclohexa-1,4-dienes using Li and liquid ammonia in the presence of an alcohol. Draw a stepwise mechanism for the following Birch reduction.

Question: Draw all stereoisomers formed when each alkene is treated with mCPBA.

a.

b.

c.

Question: Draw the organic products formed when allylic alcohol A is treated with each reagent.

a. H2 +Pd-c

b. mCPBA

c. PCC

d. CrO3 ,H2SO4, H2O

e.(CH3)3COOH , Ti [OCH(CH3)3]4 (+) -DET

f.(CH3)3COOH , Ti [OCH(CH3)3]4 (-) -DET

g. [1] PBr3,[2] LiAlH4 ,[3] H2O

h. HCrO4- –Amberlyst A-26 resin

Question:Devise a synthesis of each compound from acetylene and any other required reagents.
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