CAS号:4559-70-0
品名:二苯基磷氧Diphenylphosphineoxide
中文别名:二苯基膦氧;二苯基氧磷;二苯基氧膦;二苯基氧化膦;
英文别名:oxo(diphenyl)phosphanium;DiphenylphosphineOxide;
分子式:C12H11OP
分子量:202.189
精确质量:202.055
Psa:40.54
MDL号:MFCD00002079
外观与性状:黄色至淡橙色晶体
密度:
沸点:102-105°C 0,2mm
熔点:56-57°C(lit.)
闪点:152.9ºC
折射率:1.608-1.61
安全说明:S26
危险类别码:R22; R36/37/38
WGK Germany:2
海关编码:2902909090
危险品标志:Xn
简介:Diphenylphosphineoxideisanorganophosphoruscompoundwiththeformula(C6H5)2P(O)H.Itisawhitesolidthatsolubleinpolarorganicsolvents.ThecompoundisusedinBuchwald-Hartwigcouplingreactionstointroduceadiphenylphosphinosubstituent.Analogoustothebehaviorofphosphorousacid,diphenylphosphineoxideexistsinequilibriumwithaminortautomerhydroxydiphenylphosphine(CAS#24630-80-6)(C6H5)2POH.
用途:二苯基氧膦[Ph2P(O)H]常用于制备三苯基氧膦、烯基二苯基氧膦、与炔烃的加成和Wittig-Horner反应试剂。二苯基膦衍生物的合成Ph2P(O)H和三氟甲磺酸芳基酯偶合,膦氧化物经还原得到二苯基芳基膦(
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