Please help 1) 1-methylcyclopentene + H2 over Pd. 2) 1-ethyl-2-methylcyclohexene
ID: 942574 • Letter: P
Question
Please help
1) 1-methylcyclopentene + H2 over Pd.
2) 1-ethyl-2-methylcyclohexene + H2 over Pd.
3) The syn addition of the H and OH to the double bond relates to the _____ of the reaction.
stereospecificity stereoselectivity regioselectivity regiospecificity
4) The addition of the H to the more substituted carbon and the OH to the less substituted carbon relates to the _____ of the reaction.
stereospecificity stereoselectivity regioselectivity regiospecificity
5) Cyclohexene treated with Cl2, Xs HoCH3
Please explain!
Explanation / Answer
1) H2 over Pd will reduce the alkene present in the cyclopentene to pentane
Hence the correct answer to the first problem is 1-methyl Cyclopentane
2) H2 over Pd will again reduce the alkene to form 1-ethyl-2-methyl cyclohexane (the hydrogens will be going to add in the syn direction)
3) The syn addition is stereo speciifc addition, hence the correct answer is Option A
4) The correct answer is Option C, regioselectivity
5) The corret answer will be 1,2-dichloro cyclohexane, since the reaction with Cl2 will form dichloro products