More carbonyls wahoo

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@Dexter
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Nimboi
NimboiOP2mo ago
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Nimboi
NimboiOP2mo ago
how does one infer the second thing here going backwards following it backwards, i thought it was -OH on top of the 5-ring with a still intact 5-ring ill draw it hang on
Nimboi
NimboiOP2mo ago
my inference of compound 2
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Nimboi
NimboiOP2mo ago
heating -OH makes the double bond go onto the same position as compound number (3) here, goes it not?
Opt
Opt2mo ago
It does, yeah, but see that there is no methyl group connected to the C-OH, which would be a necessity assuming you prepared the alcohol with an aldehyde and methyl magnesium bromide Which means that you initially had a tertiary alcohol Meaning your original compound was a ketone
Nimboi
NimboiOP2mo ago
ah shiyet that's true also, why are acidic hydrolysis and conc,H2SO4/heat listed as separate steps? even in the solution they only consider H+ and heat
Opt
Opt2mo ago
The hydrolysis is for the magnesium complex to be split into an organic compound and a magnesium salt.
Nimboi
NimboiOP2mo ago
Oh I took that for granted
Opt
Opt2mo ago
No, it isn't.
Nimboi
NimboiOP2mo ago
? It sounds correct once you said it
Opt
Opt2mo ago
Then the second conc.H2SO4 protonates OH and abstracts H2O, generating electrophile (carbocation). No rearrangement since it's already tertiary, so EAS happens Ortho instead of meta because of bond length constraints.
Nimboi
NimboiOP2mo ago
Yeah got that part Thanks for solving a lot of my doubts by the way +solved opt314
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