(5-oxo-5H-dibenzo[a,d][7]annulen-10-yl)bis(triphenyl-l5-phosphaneyl)platinum(IV) bromide | 164987-56-8

• 英文名称: (5-oxo-5H-dibenzo[a,d][7]annulen-10-yl)bis(triphenyl-l5-phosphaneyl)platinum(IV) bromide
• CAS: 164987-56-8
• 化学式: C₅₁H₃₉BrOP₂Pt
• 分子量: 1004.8
• InChiKey: MDLICBJDIQPDCR-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  三苯基膦铂 在 KOtBu 作用下， 以 四氢呋喃 、 溶剂黄146 为溶剂， 生成 (5-oxo-5H-dibenzo[a,d][7]annulen-10-yl)bis(triphenyl-l5-phosphaneyl)platinum(IV) bromide
  参考文献：
  名称：

  环炔烃和Tropynes铂配合物的合成和反应性

  摘要：

  Platinum complexes of dibenzannelated didehydrotropone 5, didehydrooxepin 6, and didehydrocycloheptatriene 7 have been synthesized in good yields by base-induced dehydrobromination from the corresponding bromoalkenes in the presence of Pt(PPh(3))(3). Complex 5 crystallizes in triclinic space group P1: a 11.221(2) Angstrom, b 11.318(2) Angstrom, c 16.621(4) Angstrom, alpha = 74.22(2)degrees, beta = 78.86(2)degrees, gamma = 73.56(2)degrees, V= 2445.0(9) Angstrom(3), Z = 2, R = 5.79%. Reaction of 5 with tert-butyl isocyanide gives a single phosphine displacement product 11, and reaction with HBF4 and HBr gives oxidative addition products 8 and 12, respectively. Bis(dicyclohexylphospkino)ethane displaces triphenylphosphine from 5 and 6 to give 9 and 10, Complex 5 reacts with tetracyanoethylene to give the highly distorted substituted benzene 14 which was characterized by X-ray diffraction. Crystal data for 14: Space group P1, a = 11.274(2) Angstrom, b = 11.826(1) Angstrom, c = 13.474(2) Angstrom, alpha 111.79(1)degrees, beta 106.34(1)degrees, gamma = 98.54(1)degrees, V = 1534.9(4) Angstrom(3), Z = 2, R 6.17%. Complex 6 reacts with TCNE, to give the platinacyclopent-2-ene 15 (55%). Complex 15 crystallizes in monoclinic space group la: a = 17.175(3) Angstrom, b = 15.411(2) Angstrom, c = 18.661(2) Angstrom, beta = 91.86(1)degrees, V= 4915(2) Angstrom(3), R = 4.74%. Reaction of 7 with triphenylcarbenium tetrafluoroborate gives the dibenzannelated tropyne complex 16 which can be converted back to 7 with KBEt(3)H. Reaction of 16 with bis(dicyclohexylphosphino)ethane gives 17 (60%), and reaction with HBr gives the oxidative addition product 18 which slowly isomerizes to 19.

  DOI：

  10.1021/om00006a039