You just saved me so much work for my chem assignment Thank you!!

great to see that you're back!

Nice to see you are back making some videos ^^

Nice

Very nice! I synthesized p-Methoxy-Cinnamic Acid from Benzaldehyde via Knoevenagel reaction as part of my undergraduate organic chemistry lab course - I'm specialising in inorganic chemistry, but that synthesis was one of my favourites. This one seems more challenging, at least for getting a good yield, but still very interesting to see!

Nice job! Glad U R with us. Keep on! P.S. Could you please provide a reference to the original synthesis? That would be very helpful.

@RaExpIn

2 жыл бұрын

Thanks! Unfortunately, the procedure is from a german book called "Organikum" by Heinz Becker. And there's no translation :/

@crabcrab2024

2 жыл бұрын

@@RaExpIn Ich brauche keine Übersetzung 😉. Dieses Buch ist mir bekannt. Tolles Ding. Danke dir und viel Erfolg und Spaß bei deinen Experimenten!

@RaExpIn

2 жыл бұрын

Achso :D Es müsste S.521 sein.

@crabcrab2024

2 жыл бұрын

@@RaExpIn Danke! 🙂

@RaExpIn

2 жыл бұрын

Gern geschehen! :)

Sir Can you please make a synthesis of di iodomethane? It is the heaviest organic solvent and it can float an piece of aluminum I think that's why I really like it

The yield could be increased by adding acetaldehyde in parts to a solution of benzaldehyde and alkali.

I recommend using sulfuric acid as the high temperature bath filler. It is horrible to clean the glassware from cooked oil

@antejl7925

2 жыл бұрын

Hot sulphuric acid is extremely dangerous ..I'd sooner clean dirty glassware than risk that.

@dimaminiailo3723

2 жыл бұрын

@@antejl7925 I've proposed an alternative to oil. I've never had problems with sulfuric acid bath, btw

that residue tho 🥴 could be cool to try to work it up, might be a mixture of benzoic and cinnamic acid 😊

@RaExpIn

2 жыл бұрын

I actually did a few tests on it. As for example reacting it with sodium hydroxide and acid afterwards to precipitate it out.

10:08 do you reuse the same cooking oil for other distillations?

@RaExpIn

2 жыл бұрын

I've been using this for about 10 years now. :)

Have you considered using milder catalysts? Like primary amines?

@RaExpIn

2 жыл бұрын

It was a general procedure. So, I didn't think about it. Would be worth a try. According to Wiki the yield should be at around 60%.

Complex synthesis, since it's a challenge to separate benzaldehyde, acetaldehyde and cinnamaldehyde, and they are easily undergo oxidation, the yield was so so, 23%

Is a new apparatus swapped or cleaned before the final product? How do you avoid contamination from the previous distillation.

@RaExpIn

Жыл бұрын

Usually, I clean everything with soap and water, then with acetone and at the end with air or just letting it sit over night, before I use it again for the next distillation.

Is it possible use Salicylaldehyde instead of benzaldehyde?

@RaExpIn

2 жыл бұрын

Yes, it's a general procedure. As long as there are no other functional groups, the Aldehyde and CH-acidic compound can be substituted by anything and it's highly likely to work.

Thank you, brother, but I want you to have the necessary ingredients. I want the ingredients to make a kilo of Bakelite. How much phenol, formaldehyde and hydrochloric acid should I put?

If you're gonna use chemdraw, please use a common style like ACS1996

@RaExpIn

2 жыл бұрын

I'm using Chemsketch, because I don't have a license for ChemDraw anymore. I will have a look at it.

Do aldol condensation of acetone pls

@RaExpIn

2 жыл бұрын

I made a video about dibezalacetone. Or do you mean to react acetone with itself?

What u r planning to do with this crude cinnamaldehyde???

@antejl7925

2 жыл бұрын

Pattiserie flavours?

ok