No abstract

Synthesis of Methylenecyclobutanes 2723 g. of 40% formaldehyde (0.5 mole) in 50 cc. of concentrated hydrochloric acid at 55-70°during 12 hours.11 The upper layer was taken up in pentane, washed with water, dried and distilled over anhydrous potassium carbonate. There was obtained 51 g. (58%) of chloromethyl-£-chlorotoluene, b.p. 75-75°at 1.5 mm., ro20D 1.5560; and 8 g. (14%) of bis-(chloromethyl)-/>-xylene, as crystalline residue which gave short white needles, m.p. 108-109°, on recrystallization from heptane.

No abstract

Allene product: allene byproduct: 2‐chloropropene