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OTC pyrazole synthesis
@ nitro-genes, I must admit that as I re-read this patent and look at the laboratory preparations of ...
21-9-2017 at 23:21
by: Boffis
OTC pyrazole synthesis
Acetophenones condenses with diethyl oxalate in the presence of sodium ethoxide to give benzoylpyruv ...
21-9-2017 at 11:48
by: Boffis
Amide Reaction with Benzene Derivative?
The problem I can see is that the fluorine in a 2,4-dinitrofluorobenzene derivative will be fairly r ...
17-9-2017 at 00:00
by: Boffis
OTC pyrazole synthesis
Hi nitro-genes; since I have a little 3,5-dimethylpyrazole prepared some time ago I decided to try t ...
7-9-2017 at 08:03
by: Boffis
Iso-thiuronium salts type compounds
I have now done several more experiments into the condensation of thiourea with alkyl halides and ma ...
4-9-2017 at 05:18
by: Boffis
From THF to BDO
There are numerous published examples of the preparation of dibromo and diiodo butanes from THF, che ...
3-9-2017 at 07:46
by: Boffis
Chlorobenzotrifluorides uses and organic extractions
Low VOC's ? Isn't it a volatile organic compound? And if that vapour pressure is in mm Hg 7mm at roo ...
2-9-2017 at 03:59
by: Boffis
OTC pyrazole synthesis
Why the interest in pyrazole? I have done some work on pyrazole and pyrazolone derivatives as their ...
31-8-2017 at 13:54
by: Boffis
Filter issue recycling pet
Do you have a reference to this "titan" catalyst and indeed to the whole process? I have only seen r ...
27-8-2017 at 12:26
by: Boffis
Filter issue recycling pet
@ devilunix; most of us can't mind read and my crystal balls are getting a bit mirky these days so c ...
24-8-2017 at 11:01
by: Boffis
Iso-thiuronium salts type compounds
I have just tried the reaction of thiourea (2 mole equ) with 1,2-dichloroethane (1 mole equ). To my ...
11-8-2017 at 13:43
by: Boffis
Iso-thiuronium salts type compounds
Thiourea and benzyl chloride react to give S-benzyl-isothiuronium chloride, an important base used t ...
9-8-2017 at 15:04
by: Boffis
manganese dioxide particle size
The decomposition of manganese II carbonate is complex. Mn II carbonate breaks down in the absense o ...
2-8-2017 at 13:28
by: Boffis
what is the best method for washing Red Phosphorus
Just hot water. If the phosphorus has become visibly wet (unusual these days) it means it was not al ...
2-8-2017 at 07:46
by: Boffis
manganese dioxide particle size
By its very nature "active" Mn oxide occurs as clumps of fine particles that have a high surface are ...
31-7-2017 at 01:18
by: Boffis
5-ATZ(5-Aminotetrazole), the nitrotetrazolate ion and friends
@nitrogene; interesting work. Were you working with homemade calcium cyanamide (Engeger style) or us ...
29-7-2017 at 14:45
by: Boffis
Diazotization of 2,4-Dinitrophenylhydrazine
Phenylhydrazine reacts with nitrous acid or a proxy for it to give phenyl azide. So 2,4-dinitropheny ...
18-7-2017 at 08:11
by: Boffis
Reducing nitroguanidine with dithionite
Aminoguanidine is a strong base but rather susceptable to hydrolysis and I think you need the acidic ...
14-7-2017 at 00:06
by: Boffis
Easy Route to Acetonedicarboxylic acid?
Does anyone know anything about the salts of acetone dicarboxylic acid such as the alkali or alkalin ...
9-7-2017 at 13:46
by: Boffis
Mercury compounds from mercurous iodide
Many years ago I was given a jar of mercurous iodide, it originally contain 1lb (about 450g) of Hg2I ...
15-6-2017 at 08:49
by: Boffis
Morphine acid/base extraction from dried poppy-pods. Please help, I'm stuck!
I hate to disappoint you but morphine is not present in opium poppy seed pods in any significant qua ...
13-6-2017 at 14:36
by: Boffis
2,3-Dibromopropanoic acid from Acrylic acid
OK, I have done a great deal more experimentation on this topic and I am now in the process of writi ...
12-6-2017 at 14:13
by: Boffis
Nitrated Biodiesel?
I can't imagine that the presence of nitrate in the brew would make any difference under such alkali ...
10-6-2017 at 14:05
by: Boffis
Easy Route to Acetonedicarboxylic acid?
@ Sigmatropic, that was effecient! You answered my question before I asked it. This procedure looks ...
8-6-2017 at 01:26
by: Boffis
Easy Route to Acetonedicarboxylic acid?
[rquote=485037&tid=7546&author=Waffles SS]Chemi Pharma provide interesting patent and i thin ...
7-6-2017 at 10:59
by: Boffis
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