Could someone answer this question so I understand it. Thanks
cyclopentanol ----> cyclopentane
Which of the following sets of reagents could be used to accomplish the above transformation?
a)TsCl/Benzene & LiAlH4
b)H2SO4 & H2/Pd
c)TsCl/Benzene & KOtBU/BuOH & H2/Pt
d)All of these
e) A and B only
To determine which sets of reagents could be used to convert cyclopentanol into cyclopentane, we need to analyze the reaction conditions provided in each option.
a) TsCl/Benzene & LiAlH4:
The compound TsCl (p-toluenesulfonyl chloride) is commonly used as a leaving group in substitution reactions. However, it does not provide the necessary reduction needed to convert an alcohol into an alkane. LiAlH4 (lithium aluminum hydride) is a powerful reducing agent that can reduce alcohols to alkanes. Therefore, this set of reagents is not suitable for the desired transformation.
b) H2SO4 & H2/Pd:
H2SO4 (sulfuric acid) is not a reducing agent; it is commonly used as a dehydrating agent or in acid-catalyzed reactions. H2/Pd (hydrogen gas and palladium catalyst) is a well-known reagent used to catalytically hydrogenate alkenes or alkynes into alkanes. However, it is not able to directly convert an alcohol into an alkane. Hence, this set of reagents is also unsuitable for the desired transformation.
c) TsCl/Benzene & KOtBu/BuOH & H2/Pt:
Similar to option a, the TsCl/Benzene combination does not involve a reducing agent, so it cannot convert the alcohol into an alkane. KOtBu (potassium tert-butoxide) is a commonly used base in organic chemistry, but it does not possess reducing capabilities. BuOH (butanol) is an alcohol and unlikely to participate in the desired transformation. Finally, H2/Pt (hydrogen gas and platinum catalyst) is another hydrogenation reagent that reduces alkenes or alkynes but is not effective for converting alcohols to alkanes. Therefore, this set of reagents is also unsuitable.
d) All of these:
Since we have identified that none of the individual sets of reagents in the previous options is suitable for the desired transformation, we can conclude that option d is incorrect.
e) A and B only:
By process of elimination, we have determined that neither option a nor option b is suitable for the desired transformation. Therefore, option e is also incorrect.
In conclusion, none of the provided sets of reagents (options a, b, c, d, or e) can accomplish the transformation of cyclopentanol into cyclopentane.