The Periodic Table

The ques itself asks for the no of monochloro products including stereoisomerism when cl2 reacts with the major product of the above react in sunlight

So first of all what would be the major product

If this is fc alkylation then there should be a carbonation now that will be formed only when oh leaves right?

And then after rearrangement we get the product I wrote earloer

Tanuj

Of course the OH would leave

you're correct

no but it wouldn't be a pentyl group

it should be 2 methyl-butyl

Pranav

8:32 PM

Oh shit my bad

What the hell am I doing

I must sleep it's getting late lol

Tanuj

could you take it on from here ?

Yup

yeah same ! :D

Even got the ans

awesome !

8:32 PM

Thanks

Tanuj

good night !

sure thing man

Pranav

Could you help me with a couple of mire things

*more

Tanuj

yeah sure

Pranav

Not silly ones like this I promise

Tanuj

right now ?

Pranav

8:33 PM

Yup

10min max

Tanuj

okay make it quick I'm really mid sleep

Pranav

I have a test tomorrow so it's kind of urgent ya know

Thanks a lot

Can fc acylation be used to obatin

Para acetate acetophenone

It shouldn't be right?

That deactivating grp should be meta directing right?

Tanuj

should be as you think it

Pranav

Ya then the ans is wrong

Tanuj

lets see

Pranav

8:38 PM

The reason why is more nucleophilic than br is cz in cl the e density is more right cz it has a small size?

Right?

Tanuj

i dont think electronegativity has to do anything with size

Pranav

Than what would be the reason?

Tanuj

Br- ion is bulky in size and since we associate nucleophilicity with movement of ions , Cl- due to smaller size will have much more mobility and thus would be a better nucleophile

Pranav

Oh k thanks

Consider cyclohexane

On two opposite c there are ch3

On the two carbon be them there is a double bond

Only one double bond though

We react it with os o4

We will get syn di hydroxylation right?

Tanuj

yea must be

Pranav

8:48 PM

Till that point it was fine but then the question

Again reacts them with nahi and h20

*naoh

And yet the product remains the same

What happens here?

Tanuj

react what with NaOH and H2O ?

the intial reactant or the cis prod ?

Pranav

The product which we got after di hydroxylation

Via prod

*cis prod

Tanuj

it may be because as the medium we have now is basic (NaOH) , and the reactant itself is a base , with deficiency of any acidic specie , the product would remain same

Pranav

So that was given just to confuse us?

Tanuj

hmm , not exactly , but you could say that

its still testing your knowledge

FIITJEE test if im guessing correctly right ?

Pranav

8:52 PM

Yea you could say that

(ph)3c - ch=ch2

Yup

Tanuj

Bro really gotta go now .

Pranav

This with 1 eq of br2

How come the final product is aromatic

This really is the last ome

If a substance has phenyl anywhere in it do we term that as aromatic?

Tanuj

you could say that , but its a very very lose way to say it

your molecule basically has to fulfill the Huckel's rule

Pranav

Yea but in a new paper would you mark that as aromatic

*mcq paper

Tanuj

with 3 phenyl rings , you have the value of n as 4 to satisfy the huckels rule so yea

Pranav

8:58 PM

One final thing if you have the time. Consider cyclopentane with one ch3 substituted . We react it with 1 eq. Of cl2 in sunlight. We get a mixture of how many stereoisomerism?

Hmm yea it does have n =4

2 ?

Nah

oh i thought benzene

How the hell does one make 10 isomers in the middle of an exam

Ain't that too lengthy?

Tanuj

wait let me see

Pranav

9:05 PM

Tanuj

yup

just getting 8

Pranav

Isn't that too lengthy?

Check the mode of linkage for each c check possible kesi forms it drove me mad

*meso

I ended up with 7 somehow

Tanuj

thats surely a question for the main site !

Pranav

@Tanuj I gotta go now.(the exams at 9 30 tomorrow) Thank you so much for helping me. You are a life saver.

@Tanuj maybe tomorrow

Tanuj

Welcome

1 hour later…

M.A.R.

10:25 PM

People helping each other.

Without teasing, even

WHAT THE HELL IS WRONG WITH THIS CHAT

-2

Q: Which chemicals found in fragrances are the most dangerous for the human health?

This is an appeal to the community to help with a case where fragrance is a serious suspect for a cancer case. The only two facts are that the fragrances were not properly tested and the man who suffered from cancer was using these fragrances for 4-5 times daily. Now the cancer was on the lymph ...

everyday-chemistry

Wow, this is probably the government of Atlantis asking for help

Nice. The median score for the last 7 questions is -2.

Aaand the newest question doesn't help

M.A.R.

11:11 PM

@orthocresol Tanks for your answer! So the oxonium-resonance-structure stabilize the whole S<sub>N</sub>1 intermediat and so we can assume that also the S<sub>N</sub>1-mechanism happens also at a "big" amount? — Nilsfrank99 Apr 18 '16 at 15:17

Can a mod please edit that comment? It's ruining an awesome thread

Helicopters in advance

@Mart remember I had this comment flag campaign with one member that flagged unnecessary comments on the oldest posts on the site?

I wanna continue, but the problem is I don't remember where I left off

A: Why are there so many poor questions?

I also have noticed a trend towards poor-quality questions becoming abundant. I think there are several reasons for the overall quality being relatively poor at this stage: The number of active reviewers has dropped; at this time there are 57 close-voted questions in the review pane. It has bee...