Organic Chemistry 2

Which amine is the weakest base? Please explain so I can understand..

a. CH3CH2NH2

b. (CH3)2NH

c. C6H5CH2NH2

d. C6H5NH2

e. C6H5CH2NHCH3

14 Answers

1
MATRIX ·

no replies...[11][11][11].....

1
vector ·

ANS d
i think as in d the lone pairs of n r delocalised it is d weakest base

39
Dr.House ·

@prajith: here is a clue dude, u hvae to consider not only lone pair availability on hydrogen but also the approachability to that lone pair. and also solvation energy of the amine should be considered.

21
tapanmast Vora ·

I wud go wid B...

d wud hav bn my 2nd choice...

prajith ans kya hai

1
MATRIX ·

ya .........i too think so richa.........but was having a confusion.......

1
MATRIX ·

tapan i think the answer is d....... correct me if im wrong.......

21
tapanmast Vora ·

is the ans D or wat??

1
ankit mahapatra ·

Ans :
d) aniline is the weakest base because in this case the electron density present on nitrogen will be donated into the ring so it will be less available to abstract proton

1
MATRIX ·

thanks ankit..........

21
tapanmast Vora ·

i told B coz Ph has -I effect.....
so basicity decreases....

pata niahi y os ans D?? [2] [7] [12]

wats da source of da question.... r usure on the ans?

39
Dr.House ·

hey dude, ankit`s explanation is correct one

1
MATRIX ·

ya tapan ankit has given the answer.......

1
vector ·

hey plz ans my elimination n reaction post...........

21
tapanmast Vora ·

yah but here, NH isnt directly attached to the benzene ring.... then how can it b in conjugation?

i may b wrong

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