pentacarbonyl[1-(N-allylacetimino)-6-methyl-4-phenylyran-2-ylidene]tungsten | 174707-47-2

• 英文名称: pentacarbonyl[1-(N-allylacetimino)-6-methyl-4-phenylyran-2-ylidene]tungsten
• CAS: 174707-47-2；174759-81-0
• 化学式: C₂₂H₁₇NO₆W
• 分子量: 575.23
• InChiKey: QZAZEJXCNWDCIC-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：

  pentacarbonyl(1-ethoxy-3-phenylpropyn-1-ylidene)tungsten 在 Et₃N 、 Me₃SiCl 作用下， 以 乙醚 、 正戊烷 为溶剂， 生成 pentacarbonyl[1-(N-allylacetimino)-6-methyl-4-phenylyran-2-ylidene]tungsten
  参考文献：
  名称：

  Organic Syntheses via Transition Metal Complexes. 83.¹ cis-1-Metalla-1,3,5-hexatrienes (Butadienylcarbene Complexes) of Tungsten via Ring Opening of Pyranylidene Complexes

  摘要：

  Aminolysis of the 2H-pyran-2-ylidenetungsten complex 3 affords amino-1-tungsta-1,3,5-hexatrienes with different structures, depending on the reaction temperature and the type of amine involved. Addition of primary amines RNH(2) (4a-d)(R = allyl, n-Bu, CH(2)Ph, i-Pr) to 3 at -15 degrees C yields salt-type (3Z)-6-amino-1-tungsta-1,2,5-hexatrienes 5a-d by reversible ring opening of the pyranylidene ring. Addition of 4a-c at 20 degrees C affords (3Z)-2-amino-1-tungsta-1,3,5-hexatrienes 6a-c by an irreversible ring opening of the pyranylidene ring. Secondary amines RR(1)NH 8a-c [RR(1)N = Me(2)N, 2-(hydroxymethyl)pyrrolidine, pyrrolidine] undergo an irreversible ring opening to 2-amino-1-tungsta-1,3,5-hexatrienes 9a-c. Aminolysis of 3 in the presence of Me(3)SiCl/Et(3)N affords acetimino pyranylidene complexes 10, from which (3Z)-2,6-diamino-1-tungsta-1,3,5-hexatrienes 11 are derived upon aminolysis. Thermolysis of 6a in THF/pyridine affords the captodative 1-amino-1,3-hexadien-5-one 12. 2H-Pyran-2-ylidene complex 3, C19H12O7W, was characterized by X-ray diffraction.

  DOI：

  10.1021/om950741m