The extremely low intrinsic reactivity of the P-(formylmethyl)triphenylphosphonium cation: an artefact due to strong covalent hydration of the carbonyl group
摘要:
发现标题阳离子表现出迄今为止已知的碳酸最低的 Marcus 固有反应性;这种情况反映了醛官能团的限速水合/脱水反应。
The cascade difunctionalization of α,β-unsaturated carbonyls by nucleophilic halogenation followed by enolate trapping with other electrophiles is highly challenging in synthetic organic chemistry. Herein, we report a chemo- and diastereoselective cascade annulation of enone-tethered cyclohexadienones by using an unconventional combined Lewisacidcatalyzed halogenation reaction in the presence of