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Is there any trick to get stir bars to stay centered and spin on flat bottom flasks?
You know, my largest stirbar is 7-8cm long, I usually use it for things which do not only have lots ... |
25-7-2020 at 17:17
by: karlos³ |
Explaining your chemistry hobby
[rquote=641429&tid=155811&author=arkoma]
*edit* the EtOH was (ahemmm) locally produced[/rqu ... |
25-7-2020 at 17:08
by: karlos³ |
Phenethylamine from acetophenone
Then go via the bromoketone and react it with sodium diformylamide(Na-DFA) in DMF or MeCN, then hydr ... |
25-7-2020 at 14:48
by: karlos³ |
Phenethylamine from acetophenone
Why don't you decarboxylate cheap and available phenylalanine? |
25-7-2020 at 14:10
by: karlos³ |
Do I really need to dry every chemical for a grignard reaction, even if it's new in a bottle from a chemical supplier?
You have an ultrasound device?
Because then it will be successfull even with less than thorough dry ... |
25-7-2020 at 13:42
by: karlos³ |
Phenethylamine from acetophenone
You want to make 1- or 2-PEA from it?
Because for the former the best idea is to use nickel ammine ... |
25-7-2020 at 13:42
by: karlos³ |
Explaining your chemistry hobby
[rquote=641349&tid=155811&author=outer_limits]
Even clandestine chemist are more understood ... |
25-7-2020 at 12:34
by: karlos³ |
Common chemicals that are suspicious and vice versa
[rquote=641084&tid=155833&author=Eddie Current][
Ultimately, if a person is not engaging in ... |
19-7-2020 at 13:53
by: karlos³ |
Getting Discouraged With Organic Chemistry As A Hobby. Failed Steglich Esterification
Come on dude, I failed so many syntheses at the first try, in special when done at home, at work not ... |
18-7-2020 at 23:32
by: karlos³ |
Explaining your chemistry hobby
[rquote=640952&tid=155811&author=Draeger]I just try to explain it by also comparing it to ot ... |
17-7-2020 at 08:33
by: karlos³ |
Chloroform from TCCA instead if hypochlorite?
You should try using the search engine, there are a few posts concerning this, even somewhere a succ ... |
16-7-2020 at 08:35
by: karlos³ |
Explaining your chemistry hobby
Well, those who know I do this are only the inner family and my partner, and of those besides her it ... |
16-7-2020 at 03:57
by: karlos³ |
Do you think high school chemistry teachers often have students make Breaking Bad jokes?
[rquote=640802&tid=155809&author=draculic acid69][rquote=640799&tid=155809&author=j_ ... |
15-7-2020 at 17:16
by: karlos³ |
Graduates these days...
[rquote=640783&tid=155803&author=Refinery]Boy I have always wanted a tungsten bike.[/rquote] ... |
15-7-2020 at 13:13
by: karlos³ |
Graduates these days...
[rquote=640779&tid=155803&author=DraconicAcid]I was talking to an organic prof recently, whe ... |
15-7-2020 at 12:23
by: karlos³ |
European Sulfuric Acid Ban
I know its borderline politics...
But switzerland has even more guns than the US, and yet they have ... |
15-7-2020 at 11:38
by: karlos³ |
Graduates these days...
What happened to the good old polymath nowadays?  |
15-7-2020 at 09:28
by: karlos³ |
European Sulfuric Acid Ban
Yes it is highly unlikely.
If you only register for the VAT number(which is rather done at the tax ... |
15-7-2020 at 06:40
by: karlos³ |
European Sulfuric Acid Ban
[rquote=640642&tid=155798&author=Draeger][rquote=640633&tid=155798&author=Tsjerk]In ... |
14-7-2020 at 10:45
by: karlos³ |
The Wump Incident
I can't see blood, neither read stories which involve such accidents, especially were things like sh ... |
14-7-2020 at 03:52
by: karlos³ |
Lab and insects
They are his lab buddies he said somewhere I believe  |
12-7-2020 at 14:10
by: karlos³ |
Metal/acid reduction of benzoin
Sorry for the necroposting.
I have done exactly the same as Sydenhams chorea.
Made 39,6g of deso ... |
12-7-2020 at 13:36
by: karlos³ |
Thiamine catalyzed benzoin condensation failure
It is definitely partially soluble, obvious when you put an older bottle of benzaldehyde in the free ... |
12-7-2020 at 05:29
by: karlos³ |
Is it possible to perform O-methylations in acetonitrile
Maybe try NMP, N-methylpyrrolidine? |
11-7-2020 at 09:32
by: karlos³ |
Failed Henry reaction with 3,4,5-TMB
Thats for sure, this could have easily sufficed when used with tenfold as much of the other reagents ... |
10-7-2020 at 20:38
by: karlos³ |
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