硒化三苯膦

硒化三苯膦

CAS号:3878-44-2
英文名:Triphenylphosphine Selenide
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化合物简介
Triphenylphosphine selenide is a organophosphorus compound with the formula (C6H5)3PSe. It is a white solid which is soluble in most organic solvents. The compound is used in the preparation of other selenium compounds and is itself prepared by the reaction of triphenylphosphine with potassium selenocyanate. Single crystals have been isolated with both monoclinic and triclinic structures (space groups: P21/c and P1 respectively); in both cases the geometry at phosphorus is tetrahedral.
基本信息
编号系统
物化性质
安全信息
生产方法及用途
生产方法
由三苯基膦和硒氰酸钾或单质硒反应而得,在乙醇中重结晶。
用途
立体有择从环氧化物合成烯烃的试剂。制备脲或氨基甲酸酯在三苯硒膦催化下,芳香硝基化合物可以与醇和一氧化碳反应生成脲或氨基甲酸酯类化合物 (
式1)。制备有机硒化合物三苯硒膦作为良好的硒供体,在三甲基氯硅烷存在下,三苯硒膦与次磷酸单酯反应得到硒代氢膦酸酯 (
式2),也可以与亚磷酸酯反应得到硒代磷酸酯 (
式3)。三苯硒膦可以与某些分子内含有C-Se键构成的小环化合物反应,在C-Se键中插入一个Se原子 (
式4)。氧化得到膦酸酯在合成中,含有P=Se键的化合物可以被氧化成相应的含P=O键的化合物。以三苯硒膦为例,几种方法反应都可以得到很好的收率 (
式5)。
上游原料
2-(2-hydroxy-2-phenyl-4-pentenylseleno)benzothiazole benzylidene(triphenyl)-λ<sup>5</sup>-phosphane (methylthio)triphenylphosphonium trifluoromethanesulfonate 2-(3-phenylpropionylmethylseleno)benzothiazole [(4-chlorophenyl)phenylmethyl]triphenylphosphonium chloride 2-(3-phenylacetylmethylseleno)benzothiazole 2-(2-phenyl-2-oxoethylseleno)benzothiazole Phosphonium, (diphenylmethyl)triphenyl-, bromide ((4-methylphenyl)phenylmethylene)triphenylphosphorane [Ir(1,2-bis(diphenylphosphino)ethane)2Se2]Cl 环戊二烯 di(1,3-benzothiazole-2-yl) diselenide 三苯基磷 1,1,3,3-tetramethyl-2-indanone triphenyl-phosphoranylidenehydrazone 2,2,5,5-tetramethylcyclopentanone (triphenylphosphoranylidene)hydrazone dimethyl(phenacyl)selanium,bromide (acetylmethylene)triphenylphosphorane 乙氧甲酰基亚甲基三苯基膦 2-(2-hydroxy-2-phenyl-4-methyl-4-pentenylseleno)benzothiazole 5-[2,4,6-tris[bis(trimethylsilyl)methyl]phenyl]-5-(2,4,6-triisopropylphenyl)-1,2,3,4,5-tetraselenagermolane 烯丙基氯化镁 2-(2-hydroxy-2-(2-phenylethyl)-4-methyl-4-pentenylseleno)benzoyhiazole diphenylmethylphosphine selenide 2-[2-hydroxy-2-(2-phenylethyl)-4-pentenylseleno]benzothiazole 4-methyl-1,2,3-selenadiazole-5-carboxylic acid ethyl ester bis(4-methylphenyl)methylidene-triphenyl-λ<sup>5</sup>-phosphane 2-(2-hydroxy-2-benzyl-4-methyl-4-pentenylseleno)benzothiazole <bis(4-fluorophenyl)methylene>triphenylphosphorane (bis(4-chlorophenyl)methylene)triphenylphosphorane (η2-peroxo)bis(1,2-bis(diphenylphosphino)ethane)iridium(I) chloride 氯丙烯 三苯基瞵硫 (三苯基膦)乙腈 [(4-chlorophenyl)phenylmethylene]triphenylphosphorane 二氧化硒 (diphenylmethylene)triphenylphosphorane methyl (triphenylphosphoranylidene)acetate 氯苯