| Search |
| [Next Page] |
New to chemistry
May I recommend that you buy yourself a water-jet type vacuum pump, a Buchner flask and a couple of ... |
15-11-2020 at 04:26
by: Boffis |
Preparation of dimethylamine
I could not find the original description of the preparation of dimethylamine and 4-aminophenol-3,5- ... |
13-11-2020 at 14:04
by: Boffis |
2,2'-Bis-imidazole
@Steam; thanks for the comments, I am currently producing a write-up on this procedure since there d ... |
11-11-2020 at 04:14
by: Boffis |
2,2'-Bis-imidazole
A query: Why does ammonia react with glyoxal to produce five membered heterocyclics while formamide ... |
10-11-2020 at 09:39
by: Boffis |
Chromium Revisited
Did you test it with a redox indicator such as benzidine or tetrabase? Did you try testing with diph ... |
7-11-2020 at 12:56
by: Boffis |
Chromium Revisited
I suspect that the strongly alkaline conditions caused by the use of excess KOH are causing atmosphe ... |
7-11-2020 at 04:41
by: Boffis |
Things to do with Ethyl Formate
@karlos; thanks for the reply and comments. I am not sure how pure the formamide is given that I cou ... |
7-11-2020 at 04:12
by: Boffis |
Things to do with Ethyl Formate
Follow Fery’s thread on the preparation of ethyl formate by reactive distillation:
http://www.sci ... |
6-11-2020 at 14:46
by: Boffis |
Preparation of dimethylamine
[rquote=647748&tid=156408&author=ChemichaelRXN]What if you use methyl iodide in the right am ... |
30-10-2020 at 05:32
by: Boffis |
Reduction of Ketones to alcohols in Tween 20 vs THF
Wouldn't PEGs (polyethylene glycols) and Glymes (alkoxyglycols) be a simpler choice or do you have a ... |
30-10-2020 at 04:13
by: Boffis |
Preparation of dimethylamine
@Almaz, there is a technique of preparing very pure dimethylamine from dimethylaniline via the p-nit ... |
30-10-2020 at 04:07
by: Boffis |
Preparation of copper (I) cyanide (OTC Chem)
Really nice work and write-up Valeg96. I am glad to see you managed to get a nice white product some ... |
15-10-2020 at 05:10
by: Boffis |
Synthesis of para aromatic hydroxyls.
Most methods of aldehyde formation (formylation) from phenol yield the p- isomer. The Rimmer Tiemann ... |
13-10-2020 at 04:45
by: Boffis |
Organic Nitrites?
Preparation of dimethylglyoxine from butanone and butyl nitrite then hydroxylammonium chloride |
12-10-2020 at 01:16
by: Boffis |
Synthesis of para aromatic hydroxyls.
Welcome to the forum!
p-Cresol, 1- and 2- naphthols are readily prepared by the process of alkali ... |
11-10-2020 at 14:31
by: Boffis |
2,2'-Bis-imidazole
With a bit of assistance from a US patent 2003/0199700 I have succeeded in preparing crude 2,2-bis-i ... |
11-10-2020 at 14:11
by: Boffis |
Estimating boiling points at reduced pressure
Thanks DraconicAcid, That's exactly what I wanted to know! |
9-10-2020 at 14:26
by: Boffis |
The reaction of guanidine with alkyl thiuronium salts
Thanks Dr.Bob; I might try this again with methyl isothiuronium bromide as I have a bottle of methyl ... |
9-10-2020 at 08:57
by: Boffis |
Estimating boiling points at reduced pressure
Does anyone know how to estimate the boiling point of a liquid at reduced pressure? For example if I ... |
9-10-2020 at 06:59
by: Boffis |
The reaction of guanidine with alkyl thiuronium salts
I have been trying to prepare biguanide for some time. There are numerous published methods but in e ... |
7-10-2020 at 08:19
by: Boffis |
I think hexane can be used as a Dean-Stark solvent alternative to benzene
But won't the butanol also form an ester? |
2-10-2020 at 08:30
by: Boffis |
Sodium sulphite spontaneous oxidation
Update. From just under 300g of crude, 40 year old (like woelen's), heptahydrate I recovered roughly ... |
2-10-2020 at 07:47
by: Boffis |
I think hexane can be used as a Dean-Stark solvent alternative to benzene
That's interesting, I have often wonder if hexane or cyclohexane could be used as a substitute for b ... |
2-10-2020 at 07:25
by: Boffis |
Aesthetic Aromatics: Preliminaries
Thanks Pumukli, sorry to hear about your problems hope they sort themselves out!
Having prepared ... |
2-10-2020 at 04:14
by: Boffis |
Non trivial nickel boride
Hi njl; I would say before re-inventing the wheel check out the numerous volumes of textbooks of ino ... |
30-9-2020 at 10:15
by: Boffis |
| [Next Page] |
