Major product

JEE Main Preparation › Organic Chemistry questions › Major product

#Chemistry #Organic Chemistry

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19 Answers

1

voldy ·2009-02-16 08:01:48

seems to be a NSEC -08 Q might've been JEE 08 also I dunno

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19

Debotosh.. ·2009-08-19 03:33:26

actually the bromine at the benzyllic position gets replaced by the nucleophile :PhS^-.....the most important part of the reaction is that nucleophilic substitution of the halide atom can occur only at the alkyl region.....that is why we are replacing the bromine and not the fluorine atom that is linked to the benzene ring by strong partial double bond !!!!

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1

chemistry organic ·2009-02-19 23:35:41

IF GOOD BOOKS SAYS THEN IT MUST B RIGHT...THATS WHAT I BELIEVE...BTW WHICH BOOK??

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13

Ð”Ð²Ò¥Ñ—ÑuÏ now in medical c ·2009-02-19 23:28:19

sky....r u sure that inversion will take place even in the presence of a activating group in the ring

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13

Ð”Ð²Ò¥Ñ—ÑuÏ now in medical c ·2009-02-17 23:32:09

plz.....explain a bit....what should be the correct ans....i have no idea[2]

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1

mkagenius ·2009-02-17 23:30:32

possible....since electron density increses at para so may be that helps in carbocation forma.....

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Ð”Ð²Ò¥Ñ—ÑuÏ now in medical c ·2009-02-17 23:15:45

plz....anyone help....

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Ð”Ð²Ò¥Ñ—ÑuÏ now in medical c ·2009-02-17 22:50:27

but...book says different.... due to activating group there will be retention of configuration.....[12]

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21

tapanmast Vora ·2009-02-16 23:25:20

ABHI INVERSION IS INDEPENDENT OF WAT'S THER AT PARA POSN.....

I GUESS IT JUS DEPENDS ON DA NATURE OF REACTANT AND ITS TYPE

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13

Ð”Ð²Ò¥Ñ—ÑuÏ now in medical c ·2009-02-16 23:14:23

in JEE 2008 there was -NO₂ instead of -OCH₃

Will inversion take place ?? there is -OCH₃ group now???[7]

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1

madeforiit ·2009-02-15 23:00:31

options??

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1

skygirl ·2009-02-16 07:04:43

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1

skygirl ·2009-02-16 07:00:04

this is jee-2008 question i think...

PhS- will attack Br from 'back-side' ..

DMF helps in SN2 reaction ... so final structure will be ...

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voldy ·2009-02-16 06:42:52

no S_NAr not possible which leaves only two possible competing reactions . which are they ?

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1

vector ·2009-02-16 03:17:08

I THINK PHS- LL ATTACH TO C AT META POSITION OF F META OF OCH3

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39

Dr.House ·2009-02-16 00:48:11

DMF- DIMETHYL FURAN

PhSNa- phenyl and sodium attached to sulphur.

source for PhS^--

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11

Anirudh Narayanan ·2009-02-16 00:41:49

What is this PhSNa and DMF???

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13

Ð”Ð²Ò¥Ñ—ÑuÏ now in medical c ·2009-02-16 00:20:22

plz help....guyz

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Ð”Ð²Ò¥Ñ—ÑuÏ now in medical c ·2009-02-15 23:02:13

no options given...[2]

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Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

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