Organic synthesis

1/50

Question 1 of 50

0:003 parts · 6 marks

Type your answer on the lines below, or write it out on paper.

The following three-step synthesis converts propan-1-ol into an ester.

CH₃CH₂CH₂OH → Step 1 → A → Step 2 → B → Step 3 → ester

In Step 1, propan-1-ol is oxidised to A, which turns acidified potassium dichromate(VI) from orange to green.
In Step 2, A is oxidised further to B, a carboxylic acid.
In Step 3, B is warmed with propan-1-ol and a trace of concentrated sulfuric acid.

(a)[2]
Deduce the structural formulae of A and B.
(b)[2]
For Step 1, give the reagent and the condition needed to obtain A rather than B.
(c)[2]
Name the ester formed in Step 3 and name the type of reaction in Step 3.