Chemsheets Organic Synthesis Problems Answers May 2026

Benzene (C₆H₆) → Methylbenzene (toluene) → 4-nitrotoluene. The nitro group (–NO₂) must be para to the methyl group.

Chloromethane (CH₃Cl) has 1 carbon. Ethanoic acid (CH₃COOH) has 2 carbons. You must add one carbon .

For example, a typical problem might ask: "Synthesize butanoic acid starting from 1-bromopropane." Chemsheets Organic Synthesis Problems Answers

This article provides a comprehensive walkthrough. We will not simply list final answers; we will dissect the logic, explore common pitfalls, and provide you with the tools to solve any synthesis problem independently. Chemsheets is a UK-based educational resource provider (written by Mr. K. N. French) that produces high-quality worksheets for A-Level Chemistry (specifically AQA, Edexcel, and OCR syllabi). Their "Organic Synthesis" problem sets are multi-step puzzles where you are given a starting reactant and a target product. You must fill in the missing reagents, conditions, and intermediate structures.

If you are stuck on a specific Chemsheets problem (e.g., “Synthesize 4-hydroxybenzoic acid from phenol”), take the problem to your teacher and say, “I think the answer requires a Kolbe-Schmitt reaction at step 2, but I’m not sure about the order of nitration.” That conversation will teach you more than a thousand answer keys. Ethanoic acid (CH₃COOH) has 2 carbons

Starting from 1,2-ethanediol (HO-CH₂-CH₂-OH), produce 2-hydroxyethanal (OH-CH₂-CHO). Challenge: You cannot oxidize a diol directly—it will over-oxidize to a dicarboxylic acid.

The classic carbon-chain lengthening reaction is via a nitrile (–CN). We will not simply list final answers; we

The answer key to one specific worksheet is static. Real chemistry is dynamic.