Question

i need help but this is chemistry; write the equations for the preparation of n-butane from a) n-butyl bromide
b)sec-butyl bromide
c)ethyl chloride

Answer 1

a) LiAlH4
b) Ph(3)SnH
c)Na in dry ether(Wurtz reaction)

Answer 2

r u serious this is an exam am studying for

Answer 3

why would i want to stump u?

Answer 4

wat exactly does LiAlH4 stand for?

Answer 5

See for converting a 1 degree halide to alkane u cn use 1.LiAlH4 or 2.Ph3SnH
For 2 deg u can use 1, 2 and 3 . NaBH4
For 3 degree use 2 or 3

Answer 6

LiAlH4 is lithium aluminium hydride..it replaces the halide with a hydride..its a nucleophilic substitution rn

Answer 7

n how r the equations then?

Answer 8

Ph3SnH is Triphenyl Tin Hydride...same function but weaker

Answer 9

Youre just asked the conversion reagents here...just write it down
Dont balance
On the right side write Li[AlH3Cl]

Answer 10

get it?

Answer 11

n wat of the right hand side of the second one?

Answer 12

n-butane + Ph3SnCl

Answer 13

thanx alot

Answer 14

welcome....remember wht i wrote above...wt reagents u can use for wht

Answer 15

for the formation on n-butane or?

Answer 16

See for converting a 1 degree halide to alkane u cn use 1.LiAlH4 or 2.Ph3SnH
For 2 deg u can use 1, 2 and 3 . NaBH4
For 3 degree use 2 or 3
this is to be followed while converting

Answer 17

thanx mwaah

Answer 18

mwaah? r u a gal?

Answer 19

yeah i am

Answer 20

oh..then you made my week a lot better:)

Answer 21

mmmmm really?

Answer 22

as sure as hell

Answer 23

when u get sweetness frm unexpected quarters...it does make ur life better

Answer 24

oww i c but wait if Ph3SnH is a hydride shldnt the H be H4?

Answer 25

its (Ph)3Sn(H)
So the four valences of Sn are satisfied by 3 Ph and one H

Answer 26

owwk thanx again n mwaaaaeest

Answer 27

dear god...i wont be surprised if i walk into some wall now:)

Answer 28

hahahahahaha thanx alot

Answer 29

no probs dear

Answer 30

btw how old r u?i myt be calling u dear nd u myt be elder 2 me

Answer 31

am just 18

Answer 32

n wat of 1-butene and 2 -butene wat will be the solutions for these to form n-butane?

Answer 33

Just use nickel and hydrogen on em....free radical mechanism..hey m 18 2

Answer 34

Ni/H2 write like this

Answer 35

will they act as catalysts?

Answer 36

the Nickel acts as a surface catalyst and the hydrogen gets added to the alkene

Answer 37

ne more doubts? and r u indian?

Answer 38

in Ph3SnH do i write the 3 as a subscript? y say am indian?

Answer 39

yes 3 is subscript.....js that they teach the same at 18 in india..whr r u from then?

Answer 40

am from africa iz just that am a medical student

Answer 41

oh.....so r u in africa or somewhere else?

Answer 42

yea am in africa

Answer 43

oh..i live in delhi, india

Answer 44

y? u indian?

Answer 45

yes..

Answer 46

wow thaz nyce

Answer 47

so where in africa?

Answer 48

in Kenya