Synthesis of 4'-methylpropiophenone from toluene by Friedel-Crafts reaction (1kg+ scale)
- Thread starter WillD
- Start date
Yes, for example Iron chloride (FeCl3) and zinc chloride (ZnCl3) but the reaction will happen at a slower rate compared to using aluminium chloride.
- By CryoThio
The zinc and iron chlorides are anhydrous?
Which of those two give the faster reaction?
Which of those two give the faster reaction?
Yes they are both anhydrous and from the two iron (iii) chloride (FeCl3) would work the best
in this synthesis I only have a heater balloon mixer can I not use a water bath and how many degrees should not exceed when we add propinol chloride
This synthesis is AlCl3.6H2O, can I use this as a catalyst?
- By CryoThio
I'm pretty sure it has to be anhydrous aluminum chloride.
No water, whatsoever. Issue is you can't dry aluminum chloride by heating it, iirc.
Double check this though
No water, whatsoever. Issue is you can't dry aluminum chloride by heating it, iirc.
Double check this though
I will use zinc chloride in this synthesis How many g of zinc chloride should I use in this synthesis?
**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.
* 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.
It doesn't matter anymore, I've given up on this project.
Boiling points of toluene and 4'-methylpropiophenone under vacuum damper pressure.
20 mmHg.
Toluene 16.55 degrees.
4'-methylpropiophenone 123-126 degrees
20 mmHg.
Toluene 16.55 degrees.
4'-methylpropiophenone 123-126 degrees
