Synthesis of 4-membered Ring Alkaloid Analogues via Intramolecular [2+2] Cycloaddition Involving Keteniminium Salt Intermediates
Access to 3-Aminobenzothiophenes and 3-Aminothiophenes Fused to 5-membered Heteroaromatic Rings Through 6π-Electrocyclization Reaction of Keteniminium Salts
Efficient Access to Functionalized Cyclobutanone Derivatives Using Cyclobuteniminium Salts as Highly Reactive Michael Acceptors
