Synthesis of 5,5-Dimethyl-4-Vinylidihydrofuran-2(3)-One and 6,6-Dimethyl-5-(2-Oxopropyl)Tetrahydro-2-PYRAN-2-One from (+)-3-Carene

Key Points

• The aim is to synthesize novel compounds from 3-carene through specific chemical reactions.
• Intramolecular cyclization processes were employed.
• Vicinal disubstituted dimethylcyclopropane derivatives were utilized.
• Oxidative cleavage of (+)-3-carene with methanesulfonic acid was performed.
• Two novel compounds were successfully synthesized: 5,5-dimethyl-4-vinylidihydrofuran-2(3)-one and 6,6-dimethyl-5-(2-oxopropyl)tetrahydro-2-pyran-2-one.
• The synthesis methods yielded compounds with significant structural modifications.