Question

Thermodynamic (1,4)addition

Answer 1

I don't understand why the answer is 1,2 addition instead of 1,4

Answer 2

qwerty chem expert ?? :'[

Answer 3

Expert? No way xD

Answer 4

orgo is killing me. I'm diene.

Answer 5

I'm kinda confused with what's going on because the product neither does look like kinetically formed not does it looks like thermodynamically formed

Answer 6

I think this should be the result of kinetically controlled product (when the temperature is low)
But since the temperature is high we must get the thermodynamically controlled product

Answer 7

Thermodynamically controlled product

Answer 8

I'm done with organic chem :)

Answer 9

i'm going to fail..

Answer 10

\(\color{#0cbb34}{\text{Originally Posted by}}\) @imqwerty
Created with RaphaëlReply Using Drawing
Thermodynamically controlled product
\(\color{#0cbb34}{\text{End of Quote}}\)
I think that this should've been the product because the temperature is high and so the most thermodynamically stabled product(which is this drawing) should be formed

Answer 11

I can't quote a drawing? @Ultrilliam

Answer 12

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Nnesha
i'm going to fail..
\(\color{#0cbb34}{\text{End of Quote}}\)
F :-)

Answer 13

Hmmm... that's a good point, but understandable with how it works, I might change that so it does, thanks for the feedback! :)

Answer 14

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Ultrilliam
Hmmm... that's a good point, but understandable with how it works, I might change that so it does, thanks for the feedback! :)
\(\color{#0cbb34}{\text{End of Quote}}\)
Np :-)

Answer 15

how do we know which double bond we need to break??

Answer 16

For the kinetically controlled product I just picked the one which had more electron density on it- the one with more alpha hydrogens

Answer 17

For the thermodynamically controlled product I chose the one which was forming a more stable final product

Answer 18

\(\color{#0cbb34}{\text{Originally Posted by}}\) @imqwerty
For the kinetically controlled product I just picked the one which had more electron density on it- the one with more alpha hydrogens
\(\color{#0cbb34}{\text{End of Quote}}\)
so more stable carbocation ??

Answer 19

see there are like 50+ things we need to keep in mind in order to solve just one question
-_-

Answer 20

Tbh I think i'm confused and missing out on some points :l
Can't really think straight rn, I'll check it tomorrow?

Answer 21

Thank you for trying!! appreciate it! :--)

Answer 22

btw any tips for synthesis ??

Answer 23

Wdym by synthesis

Answer 24

Chemical synthesis
when given is the reactant and product and "100"mhmm reagents and we have to find which reagent applied

Answer 25

Reactions related to this question:
https://youtu.be/peF0tXZFCAA

Answer 26

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Nnesha
Chemical synthesis
when given is the reactant and product and "100"mhmm reagents and we have to find which reagent applied
\(\color{#0cbb34}{\text{End of Quote}}\)
You have to know them all
Sometimes you don't have to actually remember the exact type of reaction; just knowing the properties of the reagents and reactants is enough

Answer 27

Yep, whenever you're stuck- there's a YouTube video for it.

Answer 28

I watched that video already I think the answer key is wrong.

Answer 29

\(\color{#0cbb34}{\text{Originally Posted by}}\) @imqwerty
Yep, whenever you're stuck- there's a YouTube video for it.
\(\color{#0cbb34}{\text{End of Quote}}\)
I wish i can search for a new brain as well..

Answer 30

thank you!

Answer 31

Np

Answer 32

the kinetically controlled product i made is wrong

it should be this-

Answer 33

do you mean like this ?

Answer 34

on the answer key this is the product given under heated(high temp) condition

Answer 35

like this-

Answer 36

and it also says
thermodynamic = most stable double bond product
kinetic = most stable carbocation

Answer 37

move + away on 2nd carbon

Answer 38

\(\color{#0cbb34}{\text{Originally Posted by}}\) @imqwerty
perhaps the ans key is wrong
\(\color{#0cbb34}{\text{End of Quote}}\)
i think so too

Answer 39

nvm.. the answer given is correct
the double bond in the answer is the most stable

Answer 40

well if we are looking for more stable carbocation product then kinetic one is correct

Answer 41

yeah, that makes sense
it would rearrange and form a more stable carbocation in case of kinetically controlled product

Answer 42

yep