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Inne
Hydrogenation and hydroformylation of C4 unsaturated alcohols with an [Rh(acac)(CO) 2] / PNS catalyst in water solution (PNS = Ph2PCH2CH2CONHC(CH3) 2CH2SO3Li).
Autorzy
Rok wydania
1999
Czasopismo
Journal of Molecular Catalysis A-Chemical
Numer woluminu
148
Strony
59-68
DOI
10.1016/S1381-1169(99)00058-8
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
A catalytic system containing [Rh(acac)(CO)2] and water soluble phosphine PNS (PNSPh2PCH2CH2CONHC(CH3)2CH2SO3Li) was used for the hydrogenation and hydroformylation of C4 unsaturated alcohols: 1-buten-3-ol (CH2=CHCH(CH3)OH) (1), 2-methyl-2-propen-1-ol (CH2C(CH3)CH2OH) (2) and 2-buten-1-ol (CH3CHCHCH2OH) (3) in water. The most reactive substrate, (1), with a terminal double bond, is hydrogenated at 313 K and 0.1 MPa of H2 pressure giving 92% of 2-methyl-propanol after 4 h. The hydrogenation of (2) and (3) with, respectively, 74% and 65% yields was performed at 353 K and 0.5 MPa of H2 pressure. The main products of the hydroformylation of (1), (2) and (3) alcohols are 2-hydroxytetrahydrofuran derivatives formed by hydroxyaldehyde cyclization. The hydroformylation of (1) gave 81–95% of 2-hydroxy-5-methyl-tetrahydrofuran at 323–353 K and 1 MPa CO/H2 regardless of the PNS concentration. In the hydroformylation of (2) and (3) the highest yield of products, respectively 92 and 77%, was achieved at 353 K, 1 MPa and [PNS]: [Rh]=3. During the reaction a pH decrease was noted.
Słowa kluczowe
Hydrogenation, Hydroformylation, Unsaturated alcohols
Adres publiczny
https://doi.org/10.1016/S1381-1169(99)00058-8
Strona internetowa wydawcy
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