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Synthetic Routes - OCR A Level Chemistry
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Last updated: June 17, 2023
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| First submitted | June 17, 2023 |
| Times taken | 342 |
| Average score | 73.3% | Report this quiz | Report |
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1. What reagents do you use to go from Alkene to Alkane?
H2 / Ni
Acidified potassium dichromate / reflux
Ethanolic NH3
NaHCO3
2. What reagents do you use to go from Alkene to Alcohol?
H2O(g) / H3PO4
H2 / Ni
HCN
Smirnoff's reagent
3. What reagents for Alkane to Haloalkane?
Uranium
KCN / Uranium
NaX / H2SO4 / heat
Radical substitution: X2 / UV light
4. Haloalkane to Alcohol?
NaOH / heat
KCN / Ununoctium
NaBH4
HCl / heat
5. Alcohol to Alkene?
H2SO4 / heat
X2 / UV Light
NaBH4
Ethanolic KCN
6. You reflux tertiary alcohol + acidified potassium dichromate
What do you get?
Carboxylic acid
Ketone
Aldehyde
No change
7. Butan-1-ol is distilled with acidified potassium dichromate.
What do you get?
Butanoic Acid
Butanone
But-2-ene
Butanal
8. Butan-2-one is reacted with Z to form an Butan-2-ol. What is Z?
H2SO4 / reflux
HCN
Cinnamaldehyde
NaBH4
9. Walter is doing a PAG, and needs to make methanoyl chloride from methanol. What reagents does he use?
NaBH4
Add SOCl2
1. Reflux with acidified potassium dichromate THEN 2. Add SOCl2
Reflux with acidified potassium dichromate
10. What can Walter NOT make, in one step, using an Acyl Chloride?
Ester, by adding alcohol
Carboxylate salt, by adding NaOH
Secondary amide, by adding a primary amine
Primary amide, by adding ammonia
11. How can you reduce a nitrile to an amine?
H2 / Ni
UV and X2
ethanolic KCN
ethanolic NH3
12. Walter wants to make a secondary amine from a primary amine. What reagents does he use?
CH3Cl + NH3 / Ethanol
CH3Cl + CH2(Cl)CH2CH(CH3)NH2 / Ethanol
CH3Cl + KCN / Ethanol
HNO3 / H2SO4
13. In the last step of Walter's synthesis, he is alkylating benzene. What reagent and catalyst does he use, and what is the name of this process?
RCl / AlBr3 / Friedel-Crafts Alkylation
RNH2 / AlCl3 / Friedel-Crafts Alkylation
RCl / AlCl3 / Friedel-Crafts Alkylation
RCl / AlCl3 / Schade-Havertz Acylation
14. NO2 to NH2?
Sn + HCl then add NaOH, to deprotonate NH3+
Sb + HCl then add NaS2O3
Sn + HCl then add NaS2O3
Sb + HCl then add NaOH, to deprotonate NH3+
15. I am nitrating phenol What reagents do I need and what position will the substitution occur?
HNO3 / H2SO4, 2 and 4
HNO3 only, 3
HNO3 / H2SO4, 3
HNO3 only, 2 and 4
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