Question

A)Why is 4 bromocyclcohexene unreactive??(compared to 3 bromocyclohexene)
B)Why are Haloarenes insoluble in water?
C) http://prntscr.com/1k3cxy

Answer 1

@chmvijay @abb0t

Answer 2

1. Draw out the resonance structures if bromine was to leave (since it IS a good leaving group). That will tell you why.

2. bulkyness, high density, van der waal dispersion forces vs hydrogen bonds (energetically unfavorable to break the \(H\) bonds.

3. You should know what a gringard reagent is! It's a metallorganic compound, usually something like MgBr-R which attacks a carbonyl group, like a ketone or a aldehyde. I'm going to guess you have bromomagnesium phenyl attacking an aldehyde, like 3-bromopropanal. For A, B to give C, the 3-bromo-1-phenyl propane AND u can work it from there. Im not doing your work for you.

Answer 3

Is my C in "C" correct?