4,7-bis(diphenylphosphino)-5a,10b-dihydro-2,9-dimethylbenzofuro[2,3-b]benzofuran(Pd((η2-H2C=CHSiMe2)2O)2 | 1265631-55-7

• 英文名称: 4,7-bis(diphenylphosphino)-5a,10b-dihydro-2,9-dimethylbenzofuro[2,3-b]benzofuran(Pd((η2-H2C=CHSiMe2)2O)2
• CAS: 1265631-55-7
• 化学式: C₅₆H₆₈O₄P₂Pd₂Si₄
• 分子量: 1192.28
• InChiKey: FOKUEHVBJLDUBD-NUBKWXLISA-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：

  (N,N,N',N'-tetramethylethylenediamine)dimethylpalladium(II) 、 四甲基二乙烯基二硅氧烷 、 4,7-bis(diphenylphosphino)-5a,10b-dihydro-2,9-dimethylbenzofuro[2,3-b]benzofuran 以 neat (no solvent) 为溶剂， 以60%的产率得到4,7-bis(diphenylphosphino)-5a,10b-dihydro-2,9-dimethylbenzofuro[2,3-b]benzofuran(Pd((η2-H2C=CHSiMe2)2O)2
  参考文献：
  名称：

  Large P−P Distance Diphosphines and Their Monophosphine Analogues as Ligands in the Palladium-Catalyzed Telomerization of 1,3-Butadiene and Methanol

  摘要：

  The potential of diphosphines based on a dibenzodioxocin or benzofurobenzofuran backbone possessing large P P distances was studied for the selective telomerization of 1,3-butadiene with methanol under commercially relevant process conditions to obtain 1-methoxyocta-2,7-diene (1-MOD). They were found to act as monophosphines. New bulky monophosphine analogues of the same backbone and ferrocene were also evaluated. Several ligands showed improved selectivity and yield compared to the benchmark ligand PPh3 and monoxantphos. Especially 1,6-bis(diphenylphosphino)-5a,10b-dihydro-5a,10b-dimethyl-3,8-dimethylbenzofuro[3,2-b]benzofuran (3) and, 2,10-di-tert-buty1-4-diphenylphosphino-6,12-methano-12H-dibenzo[2,1-d: 1 ',2"-g][1,3]dioxocin (7), a diphosphine and a monophosphine, respectively, stand out as excellent ligands in terms of yield, selectivity, and stability.

  DOI：

  10.1021/om100980m