Cyclohexenone Construction by Intramolecular Alkylidene C−H Insertion: Synthesis of (+)-Cassiol
摘要:
We report new procedures for stereoselective cyclopentene and cyclohexenone construction employing the alkylidene carbene C-H insertion reaction. Described are diastereoselective insertion into methylene and enantiospecific insertion into methine C-H bonds. The latter case leads directly to the enantioselective synthesis of (+)-cassiol (1).
Cyclohexenone Construction by Intramolecular Alkylidene C−H Insertion: Synthesis of (+)-Cassiol
摘要:
We report new procedures for stereoselective cyclopentene and cyclohexenone construction employing the alkylidene carbene C-H insertion reaction. Described are diastereoselective insertion into methylene and enantiospecific insertion into methine C-H bonds. The latter case leads directly to the enantioselective synthesis of (+)-cassiol (1).