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Regiospecific Hydroxylation of Metallodisilanes of the Iron Group – An Impressive Example of the Transition Metal Effect

✍ Scribed by Wolfgang Malisch; Heinrich Jehle; Stephan Möller; Chantu Saha-Möller; Waldemar Adam

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
133 KB
Volume
1998
Category
Article
ISSN
1434-1948

No coin nor oath required. For personal study only.

✦ Synopsis

Reaction of the ferriodisilanes C 5 R 5 (OC) 2 Fe-Si 2 H 5 [R = H C 5 H 5 (OC) 2 Fe-Si 2 Cl 5 (4a) and C 5 Me 5 (OC) 2 Ru-Si 2 Cl 5 (4b) with water results in regiospecific hydroxylation of the β-(1a), Me (1b)] with dimethyldioxirane leads to selective insertion of oxygen into the α-Si-H bonds to yield the silicon atom to generate metallodisilanetriols C 5 R 5 (OC) 2 M-SiCl 2 -Si(OH) 3 [M = Fe, R = H (5a); M = Ru, R = Me (5b)]. ferriodihydroxydisilanes C 5 R 5 (OC) 2 Fe-Si(OH) 2 -SiH 3 [R = H (2a), Me (2b)]. Another access to yield 2a is opened by Controlled condensation of 5b with Me 2 Si(H)Cl leads to the novel rutheniosiloxane C 5 Me 5 (OC) 2 Ru-SiCl 2 -Si(OSiMe 2 H) 3 hydrolysis of the dichloro(ferrio)disilane Cp(OC) 2 Fe-SiCl 2 -SiH 3 (3a). Treatment of the pentachloro(metallo)disilanes (6).

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