... Formation of gem-Dichlorocyclopropanes from Perhalomethanes in a Phase-Transfer Catalytic (PTC) System Michal Fedorynski, Anna Dziklinska, and Andrzej Jonczyk * Department of Chemistry, Technical University (Politechnika), Koszykowa 75, PL-00-662 Warsaw, Poland ... Page 2. 298 M. Fedorynski, A. Dziklinska, A. Jonczyk vinyl ethers and the reacting species in the PTC system. ... Rev. 82 (1982) 615. lo) M. Mgkosza, M. Fedorynski, Synthesis 1974, 274. ...