Original sentence: 2-phenylcyclopropanecarbonyl chloride + NaN3.The trans-isomer is separated from the cis-isomer.ethyl 2-phenylcyclopropanecarboxylate + "alkali" → 2-phenylcyclopropanecarboxylic acid.styrene + ethyl diazoacetate → ethyl 2-phenylcyclopropanecarboxylate.trans-2-phenylcyclopropanecarboxylic acid + SOCl2 → 2-phenylcyclopropanecarbonyl chloride
Edited sentence: 2-phenylcyclopropanecarbonyl chloride is reacted with NaN3.Ethyl 2-phenylcyclopropanecarboxylate is then reacted with an alkali such as sodium hydroxide to form 2-phenylcyclopropanecarboxylic acid.First styrene is reacted with ethyl diazoacetate to give ethyl 2-phenylcyclopropanecarboxylate.The trans-isomer is separated from the cis-isomer by crystalisation with enantiopure tartaric acid.trans-2-phenylcyclopropanecarboxylic acid is reacted with SOCl2 to form 2-phenylcyclopropanecarbonyl chloride