Reactions of trialkyl phosphates with trialkyls of aluminum and gallium: New route to alumino- and gallophosphate compounds via dealkylsilylation

被引：47

作者：

Pinkas, J ^{[1
]}

Chakraborty, D ^{[1
]}

Yang, Y ^{[1
]}

Murugavel, R ^{[1
]}

Noltemeyer, M ^{[1
]}

Roesky, HW ^{[1
]}

机构：

[1] Univ Gottingen, Inst Anorgan Chem, D-37077 Gottingen, Germany

来源：

ORGANOMETALLICS | 1999年 / 18卷 / 04期

关键词：

D O I：

10.1021/om9806702

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Trialkyl phosphates OP(OR)(3) (R = Me, Et, Ph, SiMe3) react with AlMe3, AlEt3, and GaMe3 in hydrocarbon solvents to form the adducts Me3Al . OP(OR)(3) (R = Me (1), Et (2), Ph (3), SiMe3 (4)), Et3Al . OP(OR)(3) (R = SiMe3 (5)), and Me3Ga . OP(OR)(3) (R = Me (6), SiMe3 (7)). These products were characterized by H-1, C-13, Si-29, and sip NMR, infrared (IR), and mass (MS) spectroscopies and elemental analysis. The trimethylsilyl ester adducts 4, 5, and 7 further undergo a thermally induced dealkylsilylation with the formation of cyclic alumino- and gallophosphate dimers, [R'M-2(mu(2)-O)(2)P(OSiMe3)(2)](2) (R'M-2 = Me2Al (8), Et2Al (9), and Me2Ga (10)). The molecular structures of 8 and 9 were confirmed by X-ray crystallography.

引用

页码：523 / 528

页数：6

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