Rosenmund Reaction in One Shot 🔥 | Acid Chloride to Aldehyde | 12th Chemistry @a2zpractical991

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Nov 4, 2026
@a2zpractical991
🥶 FROZEN MUND = ROSENMUND REACTION 😂
Organic Chemistry की Name Reactions याद करना अब होगा बेहद आसान!
इस वीडियो में हम Rosenmund Reduction Reaction को एक मजेदार और आसान memory trick से समझेंगे।
📚 Topics Covered:
What is Rosenmund Reaction?
Acid Chloride to Aldehyde
Reaction Mechanism
Role of H₂ and Pd/BaSO₄
Why does the reaction stop at Aldehyde?
Funny Memory Trick to Remember Rosenmund Reaction
Chemical Reaction:
RCOCl + H₂ → RCHO + HCl
Reagent: H₂ / Pd-BaSO₄
🎯 Useful for:
Class 12 Chemistry
Maharashtra State Board HSC
Organic Chemistry
Board Exam Preparation
Name Reactions Revision
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Hello, kids. Today we're going to look at the Rosenmund reaction, which
one of the aldehydes, ketones, and carboxylic acids
The most important questions are here, come on over, kid,
I do it in a very tricky way, so the kid comes here.
What is the Rosenmund reaction, Rosenmund reduction
What is the reaction, child? What had Rosenmund done?
that your acid chloride is, you know acid chloride, acyl chloride,
I don't know, then I'll tell you about the structures, look at the child
connected with Cl along with carbonyl group
So, we call it acyl chlorides.
The child, you know, these acyl chlorides, these...
It will be converted into aldehydes.
Rosenmund stated exactly that, and Rosenmund's reduction
The reagent or, rather, the catalyst used was Pd.
Barium sulfate was applied together with Pd; what was applied together with Pd?
I'll tell you the uses of BaSO4, and the Pd is your reducing agent.
Now, if any reducing agent comes in nature
It's coming to trigger a reaction.
So the kid calls it hydrogen.
Who calls hydrogen?
As I'm just stating a normal thing
If you have thrown sugar down below
Who comes running instantly when you throw sugar?
Do the cheats come instantly or not?
So, actually, we have certain catalysts here
those that perform the task of calling oxygen and hydrogen
So, kid, will you ever use metal?
palladium, platinum, nickel, all of these
So, all of this serves the purpose of attracting hydrogen.
So currently, Rosenmund had used palladium.
The child called hydrogen.
Now
Now listen carefully, hydrogen exists in this form,
In diatomic molecules, there's nothing, there's nothing to do,
Just look here carefully, look at this, it breaks like this,
And it breaks like this, okay, it comes right here,
Because look, when it attacks here, the most excellent
I mean, the product that will be formed here is R-C=O-H.
What are aldehydes, sir? What is a child talking about this?
It's been figured out—this is called aldehydes and HCl, your outside.
It will become HCl. What will happen to you? You'll come out. Say, sir, this.
No, otherwise the kid will also reduce this one, I mean
Don't provide too much hydrogen to it either.
It turns it into alcohol, that bond breaks.
I'll tell you, okay, so it turned out that BaSO4 came from where?
It is used because BaSO4 is used so that
If the reaction on the aldehyde can be stopped, then it should be indicated.
Subscribe here; it might be one
You will understand it very clearly through the example.
And see how such examples appear in exams, like this.
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So, look here, this is the acyl group; how would you name it according to IUPAC?
One two three, three carbon—what do we call it, kid?
This pipe nozzle
Propane, and the child says no, one, like,
It's an acyl group, right? So, the suffix that gets attached to the acyl group, right?
Let me tell you right away, OIL feels, what does it feel like, OIL,
So propane, noly, what shall I apply, propane oil, and
C₄ chloride, then what would you write, propane
oil chloride, okay, let's go, I thing
Now that everyone understands, tell me,
What will you use in resin moon?
What will you use in resin moond? Yes, resin moond
What has been given with PD?
BSO4, provided with PD
BSO4,
BSO for the right one is fine with this PD.
BSO for OK, now what will this PD do?
Number of hydrogen atoms provided in the reaction
What will hydrogen atoms do? Yes, SCL, your
It will be removed, and this H comes here, what is this?
Your aldehyde is propanal.
What will be required for aldehyde?
What will happen to propanal?
So this is a reason moon reaction.
How will you remember this?
That the child Rezan Moon did not
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