pentacarbonyl[3-(1-indolinyl)-3-phenyl-1,2-propadienylidene]chromium | 167112-58-5

• 英文名称: pentacarbonyl[3-(1-indolinyl)-3-phenyl-1,2-propadienylidene]chromium
• CAS: 167112-58-5
• 化学式: C₂₂H₁₃CrNO₅
• 分子量: 423.345
• InChiKey: GQSNIPJMCASDFR-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  pentacarbonyl[(2E)-1-ethoxy-3-(1-indolinyl)-3-phenylpropenylidene]chromium 在 AlCl₃ 、 H₂O (s) 、 NaHCO₃ 作用下， 以 二硫化碳 、 二氯甲烷 为溶剂， 以73%的产率得到pentacarbonyl[3-(1-indolinyl)-3-phenyl-1,2-propadienylidene]chromium
  参考文献：
  名称：

  Organic Syntheses via Transition Metal Complexes. 80. Allenylidene Complexes from [(2-Aminoethenyl)carbene]chromium Complexes

  摘要：

  Allenylidene complexes (CO)(5)Cr=C=C=C(NRR(1))Ph (5a-d) (NRR(1) = NMe(2), NMePh, NEtPh, indolinyl) are formed on reaction of (2-aminoalkenyl)carbene complexes (CO)(5)-Cr=C(OEt)-CH=C(NR(1))Ph (4a-d) with aluminum chloride in carbon disulfide/dichloromethane in 53-73% isolated yield. The X-ray structure of complex 5d [NRR(1) = NMePh; monoclinic space group P2(1)/c (No. 14), a = 12.989(1) Angstrom, b = 13.520(2) Angstrom, c = 12.546(1) Angstrom, Z = 4, R = 0.044, R(w)2 = 0.143] indicates that a polarized iminium-alkynyl structure (COCr--C=CC(=N(+)MePh)Ph gives a more adequate description of the bond distances than the allenylidene structure.

  DOI：

  10.1021/om00007a018