Organic Chemistry - dbts,,reply sooon

39

Pritish Chakraborty ·2010-01-21 06:02:07

HF is a halogen acid which provides a proton.

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eureka123 ·2010-01-21 06:02:24

kk..thx[1]

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3

msp ·2010-01-21 06:06:29

brother is hydro fluoric acid in the presence of another weak acid.

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39

Pritish Chakraborty ·2010-01-21 06:07:57

If you want to use Friedel Craft reaction such that no rearrangement takes place, use acylation, and then use Zn/Hg-HCl to reduce C=O group into >CH₂ or use thioacetal and H2/Ni method to do so.
Wait..wrong conversion. Doing it again.
Here :

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24

eureka123 ·2010-01-21 06:10:55

i did 3
1) by

is it rite ?

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39

Pritish Chakraborty ·2010-01-21 06:22:08

Yeah I think its right..looks more convenient too..board style kar karke kuch zyaada hi lambe ho jaate hai conversions lol
Didn't understand what you said msp...?
Q5 mein LiAlH₄ works fine. Had it been an acid derivative I would have preferred DIBAL-H or some sterically hindered reagent.

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24

eureka123 ·2010-01-21 09:01:51

kk thx...

btw msp i too couldnt understand ur point ...[2]

plz everyone try Q2,4 too

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3

msp ·2010-01-21 18:52:20

we know dat HF is a weak acid and in the presence of another weak acid its ionisation is further depressed na,so we need energy to dissociate HF where's the energy comes from.