W(CO)5(C4C(NMe2)CHC(NMe2)2) | 184373-21-5

• 英文名称: W(CO)5(C4C(NMe2)CHC(NMe2)2)
• CAS: 184373-21-5
• 化学式: C₁₈H₁₉N₃O₅W
• 分子量: 541.216
• InChiKey: JCUFWPAJZYTNMG-UHFFFAOYSA-N

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：

  tungsten pentacarbonyl tetrahydrofuran 在 CH₃CH₂CH₂CH₂Li 、 SiO₂ 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 生成 W(CO)5(C4C(NMe2)CHC(NMe2)2)
  参考文献：
  名称：

  Heptahexaenylidene Complexes:  Synthesis and Characterization of the First Complexes with an MCCCCCCCR₂ Moiety (M = Cr, W)

  摘要：

  Silica-induced elimination of dimethylamide from [(CO)(5)M(C C3C(NMe2)(3)](-) affords the first isolated and characterized heptahexaenylidene complexes [(CO)(5)M=C=C=C=C=C= C=C(NMe2)(2)] (5a,b). Complexes 4a,b were generated by sequential reaction of Me3Si(C C)(3)SiMe3 with LiMe center dot LiBr, [(Me2N)(3)C]Cl-+(-), LiBu, and [(CO)(5)M(thf)]. Complex 5b is inert in methanol, but adds dimethylamine across the C5=C6 bond to give [(CO)(5)W=C=C=C=C=C{CH=C(NMe2)(2)}NMe2]. The reaction of 5a,b with LiMe center dot LiBr and SiO2 generates the heptahexaenylidene complexes [(CO)(5)M=C= C=C=C=C=C=C(Me)NMe2] (8a,b). Trapping of 8b with HNMe2 yields pentatetraenylidene complex [(CO)(5)W=C=C=C=C=C{CH=C(Me)NMe2}NMe2].

  DOI：

  10.1021/om700386t

文献信息

• On the Way to Heptahexaenylidene Complexes:  Trapping of an Intermediate with the Novel MCCCCCCCR₂ Moiety
  作者：Gerhard Roth、Helmut Fischer

  DOI：10.1021/om960605x

  日期：1996.12.24

  Sequential treatment of the in situ generated heptatriyne Me(3)SiC=CC=CC=CC(NMe(2))(3) with n-BuLi, (CO)(5)W[THF], and BF3 . OEt(2) affords the first alkenyl-substituted pentatetraenylidene complex, (CO)(5)W=C=C=C=C=C(NMe(2))C(H)=C(NMe(2))(2) (4), via addition of dimethylamine to the C-epsilon=C-zeta bond of the intermediate heptahexaenylidene complex (CO)(5)W=C-alpha=C-beta=C-gamma=C-delta=C-epsilon=C-zeta=C-eta(NMe(2))(2). In addition, the alkynyl(butatrienyl)carbene complex (CO)(5)W=C(C=CSiMe(3))C(Bu)=C=C=C(NMe(2))(2) (5) is formed.