The reaction shown is best carried out with which reagents? (A) H_2 and Pd/C (B)

Question

The reaction shown is best carried out with which reagents? (A) H_2 and Pd/C (B) H_2O and LiAlH_4 (C) H_2SO_4 and heat (D) H_2O and NaOH Identify the key steps in a plausible synthesis of 1-azido-2-methylcyclopentane from 1-methylcyclopentene. (A) Markovnikov addition of HBr followed by azide attack (B) non-Markovnikov addition of HBr followed by azide attack (C) azide attack followed by Markovnikov addition of HBr (D) azide attack followed by non-Markovnikov addition of HBr What is the major product for this reaction? Naltrexone, used therapeutically to treat narcotics addiction, undergoes a reduction in the body. Which compound results from this reduction? What is the major product for this reaction? What is the product of the indicated transformations?

Explanation / Answer

54. option A is the correct answer.

When alkene produces alkane, therefore addition of H2 to the double bond of alkene gives an alkane. This reaction takes place with a catalyst such as Pd, Pt, Ni metal. These metal catalysts support to break down to the double bond of alkenes instead of mixing in the reaction media.

55. option A is correct answer.

Markonikov addition of HBr to cycloalkene forms cycloalkyl halide which reacts with azide ions to produce cycloalkyl azide.Its an SN1 reaction.

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