tri-tert-butyl-diphosphaarsirane                                                                                                                                                                                                                                                                                                          生成                                                 
1,2,3,4-Tetra-tert-butyl-tetraphosphetane   、                                                                                             
tri-tert-butylcyclotriphosphane   、                                                                                             tetra-tert-butyl-triphosphaarsa-cyclobutane   、                                                                                             tetra-tert-butyl-1,2-diphospha-3,4-diarsa-cyclobutane   、                                                                                             alkaline earth salt of/the/ methylsulfuric acid