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Hydroformylation of vinylsilanes with Rh(acac) (CO) 2/tris (N-pyrrolyl)phosphine catalytic system.
Autorzy
Rok wydania
1999
Czasopismo
Comptes Rendus de l'Academie des Scientes. Series II C. Chemistry
Numer woluminu
2
Strony
235-239
DOI
10.1016/S1387-1609(99)80070-X
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Rh(acac)(CO)2 as catalyst precursor with a small excess of free N-pyrrolylphosphine ([P(NC4H4)3]:[Rh] = 3–10) was found to be very active in hydroformylation of vinyltrisubstituted silanes at 80 °C and 10 atm CO/H2 = 1. After 2 h the yields of aldehydes were 80 % (n/iso = 8) for vinyltrimethylsilane, 100 % (only n-isomer) for vinyldimethylphenylsilane and 95 % (n/iso = 5.5) for vinyltrimethoxysilane. The rate of hydroformylation of vinyltrimethylsilane is ca. three times higher than that of other vinylsilanes. 3,3-Dimethyl-1-butene undergoes hydroformylation much slower than vinyltrimethylsilane probably because of its high steric hindrance and the reaction produces 4,4-dimethylpentanal as the only product.
Słowa kluczowe
hydroformylation, vinylsilanes, rhodium catalyst, N-pyrrolyiphosphine
Adres publiczny
https://doi.org/10.1016/S1387-1609(99)80070-X
Strona internetowa wydawcy
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