名称:
                                [18]-1,4,10,13-Tetraoxa-7,16-diphosphino-kronenether [18]-1,4,10,13-tetrathia-7,16-diphosphino-kronenether
                             
                            
                                摘要:
                                The title compounds are accessible in a one-step synthesis by reaction of dilithiophosphides with 1,2-bis-(2-chloroethoxy)-ethane resp. 1,2-bis-(2-chloroethylthio)-ethane. A multistep-synthesis starts out from tribenzylphosphine.