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2,4,6-trimethylpyrylium perchlorate
You can also save some of the acetic anhydride when using mesityl oxide instead of t-butanol, in the ... |
9-2-2026 at 21:46
by: Fery |
2,4,6-trimethylpyrylium perchlorate
Hi Boffis, I scrapped the product while it was still wet, I used plastic spoon. I had a big protecti ... |
9-2-2026 at 21:29
by: Fery |
2,4,6-trimethylpyrylium perchlorate
The experiment was performed according orgsyn method at 10-times smaller scale with 2-times worse yi ... |
7-2-2026 at 21:19
by: Fery |
Recovering polymerised acetaldehyde
I hope this helps:
https://patents.google.com/patent/US2649462A/en
they used thermal cracking of t ... |
7-2-2026 at 12:44
by: Fery |
Preparation of Ketones by Calcium salt Pyrolysis
I wonder whether the nascent atomar hydrogen (2 C3H9COOH + Fe -> Fe(C3H9COO)2 + 2 H) couldn't red ... |
23-1-2026 at 21:42
by: Fery |
Syringa aldehyde, 4-propoxy-3,5-dimethoxy-benzaldehyde preparation.
Welcome to the forum. Well done! Nice experiment! Do you intend to synthesize something further from ... |
15-1-2026 at 02:56
by: Fery |
6- Benzyl Azulene synthesis
Wow well done! Thanks for sharing. High practical skills. Your product has beautiful color. |
15-1-2026 at 02:50
by: Fery |
Triphenylpyrylium bisulfate
OK the triphenyl is not suitable for azulenes. So I can try trimethyl (from acetic anhydride + t-but ... |
11-1-2026 at 07:48
by: Fery |
Triphenylpyrylium bisulfate
Nice experiment!
Isn't the bisulfate salt too hygroscopic? Anyway nice that you tried it and got th ... |
11-1-2026 at 01:40
by: Fery |
Anhydrous MnCl2 is easy to make?
[quote]Manganese(II) chloride is commercially available as MnCl2 . 4 H2O containing 36.4% water. Und ... |
8-1-2026 at 21:26
by: Fery |
triphenylphosphine oxide preparation
Too late reply but I found the synthesis here, dissolving triphenylphosphine in acetone and bubbling ... |
7-1-2026 at 11:11
by: Fery |
Binaphthyl and perylene
biphenyl is a sideproduct of grignard from brombenzene, so binaphthyl the same from bromonaphthalene ... |
4-1-2026 at 11:46
by: Fery |
Eliminating traces of Pb from Na/Zn sulphates
pesco, you used NaHSO[sub]4[/sub] to dissolve Zn
PbSO[sub]4[/sub] has K[sub]sp[/sub] = 1.8 * 10[sup ... |
3-1-2026 at 21:20
by: Fery |
Converting limonene to terpin hydrate
You can get it also from alfa pinene from turpentine - hydratation catalyzed by diluted H2SO4. Becau ... |
16-12-2025 at 21:13
by: Fery |
Drying isopropyl Alcohol (91% IPA) - will CuSO4 or MgSO4 work?
K₂CO₃. But dehydrate it at high temperature as it is usually sold as sesquihydrate K₂CO₃·1. ... |
14-12-2025 at 21:19
by: Fery |
Piperonal from Ethylvanillin
HBr cleaves ether bond (but not HCl).
https://commonorganicchemistry.com/Rxn_Pages/O_Demethylation/ ... |
27-11-2025 at 21:32
by: Fery |
Esterification using sulfamic acid ( beginner question )
Sulfamic acid reacts with alcohol at elevated temperature. I did a reaction with methanol into ammon ... |
23-11-2025 at 21:53
by: Fery |
Piperonal from Ethylvanillin
beeology - great work, well done! I wonder how much lower would be the yield when performing the rea ... |
21-11-2025 at 22:53
by: Fery |
nitration of xylene using HNO3/DCM mixture
read this:
https://sci-hub.st/10.1021/ie50532a036
[file]107575[/file]
[quote]the entire reac ... |
8-11-2025 at 22:37
by: Fery |
nitration of xylene using HNO3/DCM mixture
[rquote=704123&tid=80835&author=Keras]How to separate the nitro products from unreacted xyle ... |
8-11-2025 at 22:06
by: Fery |
How do Butyrate Esters smell to you?
Perhaps you can just filter your product through a column of KHCO3 or NaHCO3 to get rid of butyric a ... |
27-10-2025 at 03:12
by: Fery |
How do Butyrate Esters smell to you?
Washing with NaHCO3 during workup gets rid of butyric acid.
https://www.sciencemadness.org/whisper/ ... |
26-10-2025 at 03:13
by: Fery |
A Cheaper Approach to Allyl Chloride
Great experiments! Will you only synthesize sulfur analogues or also test (on lab. animals of course ... |
20-10-2025 at 09:27
by: Fery |
Oxidation of Naphthalene to Phthalic Acid by KMnO4
I did the reaction decades ago, here some more info: https://www.sciencemadness.org/whisper/viewthre ... |
20-10-2025 at 02:44
by: Fery |
Two failed experiments: 4-aminophenol and benzocaine
How much H2SO4 did you use? The amino group of the PABA could bind the H2SO4 so not enough acidity f ... |
20-10-2025 at 02:03
by: Fery |
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