The convenient syntheses of new organophosphorus-substituted benzofulvenes with indenyl moieties from bis(trimethylsilyl) inden-2-ylphosphonate and substituted azomethines in the presence of the effective initiator-sodium hydride are developed. The following treatment of phosphonates with methanolic sodium methylate gives stable water-soluble disodium salts of corresponding phosphonic acids.

中文翻译：

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具有茚基部分的新型有机磷取代富烯的合成

在有效引发剂氢化钠的存在下，从双（三甲基甲硅烷基）茚-2-基膦酸酯和取代的偶氮甲碱方便地合成具有茚基部分的新型有机磷取代的苯并富烯。以下用甲醇甲醇钠处理膦酸盐得到相应膦酸的稳定水溶性二钠盐。