Abstract In our studies of the chemistry of small rings, it was necessary to synthesize ethylidenecyclobutane 1. Repetition of the only method in the literature2, 3 was attempted, namely, the reaction of 1, 1, 1-tris-(hydroxymethyl)-propane 2 with phosphorus tribromide to give 1, 1, 1-tris-(bromomethyl)-propane 3 and the subsequent conversion of 3 to 1 with zinc. The reaction of 2 with phosphorus tribromide is exceedingly hazardous. In spite of the ...
![1,3-Propanediol,2-ethyl-2-[[[(4-methylphenyl)sulfonyl]oxy]methyl]-,1,3-bis(4-methylbenzenesulfonate) Structure](https://image.chemsrc.com/caspic/353/6962-93-2.png)
