Syntéza 4'-metylpropiofenónu z toluénu Friedelovou-Craftsovou reakciou (mierka 1 kg+)

CryoThio

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Existujú nejaké iné Lewisove kyseliny, ktoré možno použiť na syntézu 4mmc z toluénu?

Chlorid hlinitý je pre mňa ťažko dostupný.
 

AgamemnonFromTroy

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Áno, napríklad chlorid železitý (FeCl3) a chlorid zinočnatý (ZnCl3), ale reakcia bude prebiehať pomalšie v porovnaní s použitím chloridu hlinitého.
 

CryoThio

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Chloridy zinku a železa sú bezvodé?

Ktorý z týchto dvoch dáva rýchlejšiu reakciu?
 

AgamemnonFromTroy

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Áno, obidve sú bezvodé a z týchto dvoch chlorid železitý (iii) (FeCl3) by fungoval najlepšie
 

Germanium

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Ako syntetizovať 3-metylpropiofenón?
 

oneimone

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Jo jo. pri malej syntéze je pomer substrátov rovnaký 3:1:1,5 alebo sa niečo mení?
 

TucoSalamanca.

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pri tejto syntéze mám len ohrievač balónový mixér nemôžem použiť vodný kúpeľ a koľko stupňov by nemal prekročiť, keď pridávame propinolchlorid
 

TucoSalamanca.

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V tejto syntéze je AlCl3.6H2O, môžem ho použiť ako katalyzátor?
 

CryoThio

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Som si takmer istý, že to musí byť bezvodý chlorid hlinitý.

Bez vody, v žiadnom prípade. Problémom je, že chlorid hlinitý nemôžete vysušiť zahrievaním, iirc.

Dvakrát si to však overte
 

TucoSalamanca.

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20 ml propionylchloridu
60ml toluén
34 g chloridu zinočnatého
 

TucoSalamanca.

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V tejto syntéze použijem chlorid zinočnatý Koľko g chloridu zinočnatého mám použiť v tejto syntéze?
 

G.Patton

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Rovnaký molárny pomer ako v prípade AlCl3
 

TucoSalamanca.

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koľko stupňov by sa nemalo prekročiť pri pridávaní propinolchloridu
 

NovicechemistEU

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**Propionyl Chloride (CH₃CH₂COCl):**

* Molar mass: 109.5 g/mol
* Number of moles: 1000 g / 109.5 g/mol ≈ 9.13 mol

Toluene (C₇H₈):** **2.

* Molar mass: 92 g/mol
* Density (25°C): ≈ 0.87 g/mL
* Mass: 3000 mL * 0.87 g/mL = 2610 g
* Number of moles: 2610 g / 92 g/mol ≈ 28.4 mol

**Aluminum Chloride (AlCl₃):**3.

* Molar mass: 133.5 g/mol
* Number of moles: 1500 g / 133.5 g/mol ≈ 11.2 mol


**Mole Ratios:**

Now, let's determine the mole ratios by proportioning the mole numbers to each other. Let's ratio according to the smallest number of moles (here propionyl chloride):

** **Propionyl Chloride : Toluene : AlCl₃**
* **9.13 mol : 28.4 mol : 11.2 mol**
* **Molar ratios - 1 : 3.11 : 1.23**

This implies a ratio of approximately 1:3:1.
 

NovicechemistEU

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Boiling points of toluene and 4'-methylpropiophenone under vacuum damper pressure.
20 mmHg.
Toluene 16.55 degrees.
4'-methylpropiophenone 123-126 degrees
 
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