Newton

my ans. - C>A>B

i was going through EAS (nitratn) , i noticed that H from H2SO4 protonates OH . I was expecting O- to be protonated because -ive charge.

in which case fastest or most stable protonation of O will take place ?Arrange in order

@Safdar OK thanks.

Is it true ??

@Safdar No i never asked anything about NMR. My only question is "When CH3 is directly attached to O(e.g. methoxide) then CH3 acts as Electron Withdrawing Group ?"

@YusufHasan bhaiya free ho to ek baar question dekh lijiye ga. Please

Sir aisa kuch toh nii btaya ???

My sir taught us R is always +I (or electron releasing ) , Except in organometallics like (Grignard Reagents) .

Is it true ?

Also one more doubt "we call CH3 an electron releasing group only when attached to an -I group "

quora.com/…

Link to that post -

Is it true ?

In a quora post i read "When CH3 is directly attached to O(e.g. methoxide) then CH3 acts as Electron Withdrawing Group , it's also proven by NMR Spectroscopy"

please solve this question.I have tried this many times but still can't solve

Why am i wrong??

Please Help!!

absolutely wrong statement!!

it says that "a,b unsaturated aldehyde favors 1,2 adduct"

it looks like there is an error in my book.

ignore that.

@YusufHasan Am i wrong??

E.g-

I don't think HSAB is reason for this because in case of alpha-beta unsaturated aldehyde 1,2-Adduct is major product.

According to HSAB principle " hard acids prefer binding to the hard bases to give ionic complexes, whereas the soft acids prefer binding to soft bases to give covalent complexes. "

ok!! thanks for giving your time

is there any indian version of clayden?

Is MS Chahauhan organic theory enough for Jee Advanced??@Fancy-Toon

??

@Fancy-Toon best book for Jee advance organic concepts theory .

All The Best!!

i'm in 11

@Fancy-Toon in which class are you??

thanks,

@Fancy-Toon Can you answer by basicity question?Plz.

@Fancy-Toon " 1,4-addition product is major and 1,2 addition minor product" is a general statement for apha-beta unsaturated ketones .So, i don't think there is any role of the statement you stated above.

@Jasmine no that's 1,4-Adduct not 1,2-Adduct.

Please give reasons.

Little bit confused because A) is more sterically hindered than (b) so it might affect basicity.

Am i correct?Plz. reply

b) because of resonance it'll decrease availability of electrons

quora.com/…