http://tinypic.com/r/1zq6c2f/6
http://tinypic.com/r/2enbz9i/6
If you can only answer one, that's okay, too. Anything will help.
Thanks! =)
http://tinypic.com/r/2enbz9i/6
If you can only answer one, that's okay, too. Anything will help.
Thanks! =)
-
1. http://tinypic.com/r/1zq6c2f/6
# its a syn-elimination process. so the answer should be cis-1,2-diphenylprop-2-ene
2. http://tinypic.com/r/2enbz9i/6
# this is a SN2 reaction
# the best combination would be : Ph-CH2-Br + CH3-CH2-CH(CH3)-ONa
# if i pick that combination, it will be a primary bromo-alkane and you should know that primary bromo-alkane favours SN2 reactions.
# i can choose the other way around : Ph-CH2-ONa + CH3-CH2-CH(CH3)-Br
# but, the bromo-alkane is now secondary bromo-alkane. it favours both SN1 and SN2 reactions.
# it will compete between each other and thus lower the yeilds.
# its a syn-elimination process. so the answer should be cis-1,2-diphenylprop-2-ene
2. http://tinypic.com/r/2enbz9i/6
# this is a SN2 reaction
# the best combination would be : Ph-CH2-Br + CH3-CH2-CH(CH3)-ONa
# if i pick that combination, it will be a primary bromo-alkane and you should know that primary bromo-alkane favours SN2 reactions.
# i can choose the other way around : Ph-CH2-ONa + CH3-CH2-CH(CH3)-Br
# but, the bromo-alkane is now secondary bromo-alkane. it favours both SN1 and SN2 reactions.
# it will compete between each other and thus lower the yeilds.