thanx atara that helps make things clearer

you didnt understand a fucking word of it, rat.

haha nope its spiceboy himself! miss you alot brother!!

Man you dont know anything at all about chemistry i know you dont.. Nothing about atoms electrons molecules bonds NOTHING AT ALL wouldnt know an aldehyde or ketone or carbox nor how to make any of
them seriously

I don´t know anthing at all about chemistry too..that´s really matters?...
It´s so sad read that kind of  things when someone arrives since moths ago,...i think seriously you guys should talk that things privately,...it´s a shame to the forum read that shit

A rather useful paper was requested by myself and subsequently uploaded by roid rage in last months reference request thread. It is worth digging up for those interested. Major improvements to the practice.

If you can't be hassled to even find the paper with a search, then its contents are most likely outside your abilities.

If you can't be hassled to even find the paper with a search, then its contents are most likely outside your abilities.

sorry professor.


i dont need to read past the title to know it has no relevance.

efficient and HIGHLY ALDEHYDE SELECTIVE wacker oxidation

your sitting on a real gem there my friend good luck with it


Just to clear up the above, fresh 1 deleted his post after he realized how disrespectfull he was being, i was replying to him, not you nigluhS.. what you said is off Little Brittan

Quote

your sitting on a real gem there my friend good luck with it

Yeah. I'm not stupid enough to follow it as a synthetic path in this instance but it does contribute to the understanding of the role of solvent/ water combination in the wacker doesn't it. Such an understanding might just allow one to increase yields - not necessarily by following the synthesis in it.

Besides, just because you are having some sort of bitch fight with another member doesn't mean you should immediately engage in sarcasm. I had, obviously incorrectly, assumed you were going to be smart enough to read the article to understand the factors but I don' really give a fuck if you don't! the paper is still a very interesting development in Wacker chemistry. It will open up new precursor pathways.

what is new about it?

it uses more chems than the regular pbenz wacker, and achieves a perfect yeild of something we dont want

it still uses p-benz 115%molar    <<<--

it uses 2.5%molar PdCl2(MeCN)2  <<--

so react your palladium with acetonenitrile to get the catalyst

then the solvent is tert bulyl alcohol which is about the only thing of interest

all this to achieve a perfect yield of aldehyde - which is exactly what we do not want.. we want the more delicate KETONE which is a lower oxidation state.. this is why it is difficult to oxidise the alkene to a ketone without "over oxidizing"

ketone, aldehyde, carbox

now i will grant you that there is a wacker oxidation with tert butyl alcohol, PdCl2 and i think H202. This one achieves high yeilds of methyl ketone and little aldehyde in the refs

member formerly known as palladium knows a little about this one and it is a promising route. As for the methyl nitrite wacker, i believe it was sunlight who was working on this one and claiming all sorts of results.. i have been through this and the verdict seems to be everyone who has done the methyl nitrite wacker has achieved poor results.. ask jon he will tell you


im not bitch fighting with any members and i apologise for how i come across i really mean no disrespect. the weasel deletes his comments after i reply making me look like the aggressor. As far as im concerned it is over. As long as you all know what happened and are happy for him to hang around then thats how it goes

this was in response to a now deleted post from fresh1

and im a spice sock puppet not the other way around.. spiceboy taught me everything i know, i owe it all to him.. why the f you think i am the 02 wacker specialist!!

dont be so fucking dis respectfull you POS fresh1 hypnos whatever

you rant on about the SRV as tho you know..

Spiceboy Reaction Vessel <<<<---- get it?

Man you dont know anything at all about chemistry i know you dont.. Nothing about atoms electrons molecules bonds NOTHING AT ALL wouldnt know an aldehyde or ketone or carbox nor how to make any of them seriously

anything you write is dug up from archives and the info is outdated. the only chemistry fresh has ever done is extract the fent from patches with a solvent then shoot it up his arm. you can tell hes bent or half asleep by his posting style,,,

its just the truth guys im sorry if im off topic but seriously how would you feel if this happened to you but the guy still trolls around stinging and talking shit

spice has like 6 stings all from fresh obviously

Not to bring up old shit, but before any of the noobs decide to spout off at the mouth about anything they think they may know.... There are quite a few names on this board that i recognize from many years ago.  Respect should be given to everyone for one thing, but more-so to the people that pioneered most of the procedures that ridiculous amounts of people follow worldwide.  Some are dated, some are archaic, and some are still the shit to this day, all of them signed by those names are valid and a stepping stone in the quest for perfection.  Anyway, new on this board, just saw this and got irritated.  I feel much better now.