ChemInform Abstract: Synthesis of (1.1.1)Propellanes by Cyclization of 3‐ Alkylidenecyclobutylidenes.

Abstract

Synthesis of (1.1.1)Propellanes by Cyclization of 3-Alkylidenecyclobutylidenes.-Various kinds of propellanes such as (I) and (II) are obtained via carbene cyclization as key step. Mechanistical aspects based on ab initio calculations are discussed. -(KENNDOFF, M.; SINGER, A.; SZEIMIES, G.; J. Prakt. Chem./Chem.-Ztg. 339 (1997) 3, 217-232; Inst. Org. Chem.,