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@Dexter
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.Chemistry LibreTexts
10.2: Reactions with Phosphorus Halides
Because of the limited synthetic utility of reacting alcohols with hydrohalic acids to form alkyl halides, the alternative reagents thionyl chloride and phosphorous tribromide. have been developed.
but yaha to first tak hai
main mujhe ye smaj nhi ara ki h2po3 kaise ayega
you got any idea? @Opt
You see that HOP(OR)2?
Replace OR with OH.
H3PO3
Voila
Basically, two more iterations of attacking with H(+), Br(-)
hn but structure wise dekhe to aise karne pe p would be attached to 3 oh group
and iska jo structure hai it has 1 O double bond
2 oh group
and 1 H attached to P
The double bond is there. See?
It's an ester
mujhe abhi bhi smaj nhi aya
iska hisab se maine 1st step kiya
to product aya HOPX2
Tautomerism exists.
P(OH)3 tautomerises to the usual form we know
OHHHH
ok then
ye wala fact nhi pata tha
😅
+solved @Opt
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