Natural Science Forum / Chemistry / Organic Synthesis / September 2003

I do know about the hybridization theory and I do know about the VSEPR
theory, and that according to bond angles it is very unlikely for
carbon to bond to other atom with a quadruple bond. This would require
much energy to synthesize and if done, it would not be stable, but, is

what is hyperconjugation?
how it affects the stability of carbocation and carboanion?
is resonance true or imaginary?

I am a undergraduate student . I need a free websit which can download
e-book that is about to "advanced organic chemistry".I long it very
much with which I can complete my homework.
Who can help me ?

                                I'm want to conduct a catalytic
hydrogenation under acidic conditions.  The reference uses traces (0.5 mL
per 20 mL solvent hexanes) perchloric acid (HClO4), which for safety reasons
and the lack of a washdown fumehood, I cannot and don't want to use ...

Hi Group!
I'm looking for any consolidated information/materials/books about
allyl esters and their properties. It's quiet hard to find something
about it, even in internet ;-)

Let's say one wishes to make an organic amine by a Hofman alkylation
(RX or PhRX + NR2).
The alkyl halide is not available commercially, so it must be made from
a alkene by hydrohalogenation. The alkene comes in cis or trans forms.

Uranium is enriched as the more volatile UF6. Since 13C chemistry is
so expensive we need to think through our options, carefully. We need
trifluoroacetic acid enriched (at least) at the 2 position. Natural
abundance TFA is cheap in quantity.  The formula weight of TFA is 114

Just to make life hard:
I need to synthisize about 5g of phenyl anthranilate for a uni lab
project.
Can some one please check or comment on this method our group came up

what do you need this for? If it is for lab scale reactions then just buy some dry Ethanol
from your normal lab chemical supplier. It can't be done as easy as you think. A
commercial process uses beds of molecular sieve at temperature to remove the water. Other
methods are pressure ...