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Organic halides with piperdine
Thanks for the pKb values; I was on my mobile device when I wrote that and did not have the appropri ... |
16-12-2014 at 04:25
by: DJF90 |
Organic halides with piperdine
Reaction of benzyl bromide with piperidine will give the N-benzylpiperidinium bromide salt. However, ... |
15-12-2014 at 14:28
by: DJF90 |
Preparation of 2,4-dinitrobromobenzene
[rquote=377420&tid=28480&author=CuReUS]
2,4-dinitrochlorobenzene,on boiling with NaOH at ... |
12-12-2014 at 00:00
by: DJF90 |
Copper carbonate - controlling the colour
Brauer has some conditions you can look at. As I recall, its a matter of temperature and precipitant ... |
26-11-2014 at 09:49
by: DJF90 |
Chlorination of tertiary amino alcohol
What makes you think you won't get aziridine formation? You should protect the amine first (possibly ... |
26-11-2014 at 00:14
by: DJF90 |
chunk LAH
You can purchase pelletised LAH reagent which is safer than powder due to the limited surface area d ... |
25-11-2014 at 00:06
by: DJF90 |
Are ground glass thermometer worth it?
Obviously a certain degree of care is required, but thats true of all scientific glassware. |
22-11-2014 at 10:58
by: DJF90 |
Are ground glass thermometer worth it?
Whats do you think is wrong with mercury ones? I have nine of them and they're all fine. I've used a ... |
22-11-2014 at 06:43
by: DJF90 |
recrystallization -- general techniques of purifying hygroscopic chemicals
I've recrystallised a deliquescent N-oxide before, and that was a real pain. The buchner funnel was ... |
14-11-2014 at 00:00
by: DJF90 |
silver iodide or copper iodide?
Another indication is that silver iodide photolyses in light... |
10-11-2014 at 04:16
by: DJF90 |
silver iodide or copper iodide?
[rquote=363384&tid=44412&author=gdflp]The elemental iodine is due to the fact that you didn' ... |
10-11-2014 at 01:11
by: DJF90 |
Homework Questions-
Your regioselectivity is correct. But, you've got the stereochemistry wrong. Boron and hydrogen add ... |
6-11-2014 at 05:06
by: DJF90 |
Homework Questions-
The structure is correct but the software you're using doesn't appear to like your wonky bond angles ... |
5-11-2014 at 09:32
by: DJF90 |
Preparation of Benzophenone
I'd like to chime in on the well deserved applause.
I suspect the red-brown colouration of the re ... |
3-11-2014 at 09:38
by: DJF90 |
4-methoxyphenol syn using hydroquinone methyl iodide
I had no issue replicating Peach's work, and obtained granular solids on neutralisation. I suspect y ... |
30-10-2014 at 09:27
by: DJF90 |
Procedure of tosylation of p-aminochlorobenzene
Thats a fairly unconventional way of (re)crystallising your product. Personally, I'd dissolve in min ... |
27-10-2014 at 05:55
by: DJF90 |
Procedure of tosylation of p-aminochlorobenzene
Why didn't you use an organic solvent like I had suggested... likely would have avoided any gum, and ... |
26-10-2014 at 22:54
by: DJF90 |
Procedure of tosylation of p-aminochlorobenzene
It should partition nicely into the aqueous phase. At end of reaction (check by TLC/NMR/any other su ... |
26-10-2014 at 01:46
by: DJF90 |
an alternative to the delpine and gabrial reaction
Yes Nicodem, the Synthesis article was the one I was referring to, but I'm usually on my mobile and ... |
25-10-2014 at 05:49
by: DJF90 |
an alternative to the delpine and gabrial reaction
I've seen sodium diformylamide being suggested as an advantageous substitute for the gabriel reactio ... |
24-10-2014 at 08:48
by: DJF90 |
Procedure of tosylation of p-aminochlorobenzene
I've done tosylation of 2-iodoaniline before using pyridine as solvent. It worked ok but purificatio ... |
24-10-2014 at 08:43
by: DJF90 |
Safety precautions when working with LAH (First time)
Where do I start... as others have said, use a safer substitute and find somewhere more suited to d ... |
23-10-2014 at 00:17
by: DJF90 |
Mystery Glassware Identification Thread
I could not believe my eyes when I saw this apparatus in an old Ind Eng Chem paper (I was browsing o ... |
22-10-2014 at 07:11
by: DJF90 |
Mystery Glassware Identification Thread
Second set of pictures: the first one looks to be a levelling bulb for a gas burette. The second and ... |
21-10-2014 at 23:13
by: DJF90 |
Mystery Glassware Identification Thread
The first one looks like a fractional distillation reflux splitting head. The two bulbs with stopcoc ... |
21-10-2014 at 23:07
by: DJF90 |
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