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Questions about working at very low temperatures
At the following website, they show some pictures of temperature measurements of a few mixtures:
... |
29-12-2005 at 12:16
by: Sergei_Eisenstein |
Alkylzinc reagents from unactivated alkylbromides and chlorides
[align=center][img]http://img273.imageshack.us/img273/2690/frankzinc3fk.jpg[/img]
[b]Zinc Alkyls, ... |
28-12-2005 at 12:22
by: Sergei_Eisenstein |
Alkyl and Aryl Derivatives of the Alkali Metals
I found a new organometal-related article when visiting the library. I found it specially interestin ... |
28-12-2005 at 12:02
by: Sergei_Eisenstein |
Questions about working at very low temperatures
Thanks for the tips and advice!
I found an interesting article: [i]A versatile low-temperature th ... |
26-12-2005 at 06:22
by: Sergei_Eisenstein |
Questions about working at very low temperatures
I will soon have the opportunity to conduct experiments at very low temperatures. I have found (  ... |
25-12-2005 at 04:49
by: Sergei_Eisenstein |
organic chemistry
I think the standard method is reacting ethyl acetoacetate with MeI in the presence of a strong base ... |
27-11-2005 at 10:44
by: Sergei_Eisenstein |
Parared preparation
I'm trying to remember an ink analysis I've performed at school in the past, but it has be ... |
26-10-2005 at 07:46
by: Sergei_Eisenstein |
Parared preparation
[quote]BTW: Although this was only done for fun, I wanted to profit from this by making my own red i ... |
24-10-2005 at 06:10
by: Sergei_Eisenstein |
KI/Oxone oxyiodination dont work!!
The method indeed doesn't work as has been advocated by that author for this specific substrate ... |
18-10-2005 at 07:56
by: Sergei_Eisenstein |
Wittig reaction with phosphorous ylides
You must be referring to the [b]Wittig[/b] reaction?
Also, the reaction of Ph3P=CHPh with Ph2CO w ... |
25-8-2005 at 04:25
by: Sergei_Eisenstein |
crap yields of phenol-alkyl ether
In my experience, acetone works either very well or very poor. My yields are either 80-99% or 20-40% ... |
21-8-2005 at 05:46
by: Sergei_Eisenstein |
Obtaining p-isopropylbenzoic acid
[quote]Wouldn't plunking a few pieces of dry ice be more convenient?[/quote]
Yes, adding i ... |
20-8-2005 at 07:00
by: Sergei_Eisenstein |
Obtaining p-isopropylbenzoic acid
Have you considered the following reaction pathway:
cumene ---> p-bromocumene
p-bromocumene ... |
20-8-2005 at 00:26
by: Sergei_Eisenstein |
The effect of acid on skin
Bwaaa, it's only sulfuric acid... Be glad it wasn't chlorosulfonic acid One
of my f ... |
13-8-2005 at 11:58
by: Sergei_Eisenstein |
toluene --> benzoic acid...
[quote][i]Originally posted by budullewraagh[/i]
direct oxidation with KMnO4 or CrO3 or CrO4-2 salt ... |
13-8-2005 at 11:37
by: Sergei_Eisenstein |
toluene --> benzoic acid...
Another route might be the oxidation with Chromium salts, but it might be a problem with the cost as ... |
13-8-2005 at 06:56
by: Sergei_Eisenstein |
HCN
The Gattermann reaction works very well for this substrate. |
12-8-2005 at 07:26
by: Sergei_Eisenstein |
B-asarone Synthesis
[quote][i]Originally posted by praseodym[/i]
What do you want asarone for since it is banned in man ... |
7-8-2005 at 10:00
by: Sergei_Eisenstein |
B-asarone Synthesis
I think I have read the first reference, but it was years ago. Anyhow, they used the Elbs persulfate ... |
7-8-2005 at 00:10
by: Sergei_Eisenstein |
ethylacetoacetate + bromobenzene = ?
[quote][i]Originally posted by joe_aldehyde[/i]
would a methylene arylation with bromobenzene work ... |
5-8-2005 at 08:03
by: Sergei_Eisenstein |
l-alanine to the racemate
[quote]I have no idea about the mechanism, however. Probably some imine formation (HN=C(CH3)COOH), w ... |
2-8-2005 at 08:55
by: Sergei_Eisenstein |
3,4,5-trimethoxy-beta-nitrostyrene synthesis
I've seen references here and there where phenolic benzoic acids where permethylated with diazo ... |
24-7-2005 at 12:46
by: Sergei_Eisenstein |
From where are you?
Play it, Sam. Play "As Time Goes By."
 |
6-7-2005 at 11:35
by: Sergei_Eisenstein |
3,4,5-trimethoxy-beta-nitrostyrene synthesis
[quote][i]Originally posted by Sandmeyer[/i]
Again, I haven't looked up your proposal, it mi ... |
29-6-2005 at 08:28
by: Sergei_Eisenstein |
carbene reaction conditions?
NaOH, chloroform and carbenes:
http://clem.mscd.edu/~wiederm/oc2chp/oc2chpphenols/page4.htm |
23-5-2005 at 09:53
by: Sergei_Eisenstein |
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