| 摘要 |
3,3 - Bis - (chloromethyl) - oxetane is prepared by thermolysis of the cyclic sulphurous acid ester of pentaerythritol dichlorohydrin in the presence of salt-like organic onium compounds of elements of the V or VI main groups of the Periodic Table or in the presence of organic compounds of such elements which can be converted into such onium compounds. The preferred catalysts are compounds of P, N, As and S. Inorganic acid-binding agents may be added during the thermolysis. |
