Results 171 to 180 of about 5,572 (222)
Some of the next articles are maybe not open access.
The hydroformylation of alkenes
2021This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
openaire +1 more source
Domino Reactions Triggered by Hydroformylation
2013HF reaction represents a selective method for the synthesis of aldehydes starting from alkenes. Because of versatile aldehydes reactivity, it is possible to perform different domino protocols based on contemporary HF, including Michael's reaction, reductive amination, cyclopropanation, lactonization, and many others. This overview reports on the last 5
Petricci, Elena, Cini, Elena
openaire +4 more sources
ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Iwao Ojima +3 more
openaire +1 more source
AbstractFor Abstract see ChemInform Abstract in Full Text.
Iwao Ojima +3 more
openaire +1 more source
Canadian Journal of Chemistry, 1967
Hydroformylation of 3,4-di-O-acetyl-d-xylal gave 4,5-di-O-acetyl-2,6-anhydro-3-deoxy-aldehydo-d-lyxo-hexose (I) and 4,5,di-O-acetyl-2,6-anhydro-3-deoxy-aldehydo-d-xylo-hexose (II). Methyl sulfoxide oxidation of 2,3-di-O-acetyl-1,5-anhydro-4-deoxy-d-arabino-hexitol (III) and of 2,3-di-O-acetyl-1,5-anhydro-l-xylo-hexitol (IV) yielded compounds I and II,
A. Rosenthal +4 more
openaire +1 more source
Hydroformylation of 3,4-di-O-acetyl-d-xylal gave 4,5-di-O-acetyl-2,6-anhydro-3-deoxy-aldehydo-d-lyxo-hexose (I) and 4,5,di-O-acetyl-2,6-anhydro-3-deoxy-aldehydo-d-xylo-hexose (II). Methyl sulfoxide oxidation of 2,3-di-O-acetyl-1,5-anhydro-4-deoxy-d-arabino-hexitol (III) and of 2,3-di-O-acetyl-1,5-anhydro-l-xylo-hexitol (IV) yielded compounds I and II,
A. Rosenthal +4 more
openaire +1 more source
Hydroformylation of formaldehyde
Journal of Organometallic Chemistry, 1979Abstract The reaction between hydridotetracarbonylcobalt and monomeric formaldehyde at 0°C in the presence of 1 atm of carbon monoxide leads to stoichiometric hydroformylation with the formation of glycolaldehyde in high yield.
Jerome A. Roth, Milton Orchin
openaire +1 more source
Photochemical Hydroformylation
Angewandte Chemie International Edition in English, 1981UV irradiation favors the hydroformylation of alkenes in the presence of some cobalt or rhodium catalysts. For example, propene can be hydroformylated to butyraldehyde with CO/H2 (1:1), 85 bar at 85 °C on Co(OAc)2/P(nBu)3‐catalysis in methanol; the selectivity is ⩾99%. Under these conditions the reaction proceeds thermally. A high stereoselectivity ( ≈
Manfred J. Mirbach +4 more
openaire +1 more source
Hydroformylation of polyisobutene
Journal of Molecular Catalysis, 1991Abstract In the present paper, the hydroformylation of a commercial polyisobutene promoted by the presence of a cobalt catalyst has been studied. Two types of double bonds with different structures and reactivities were recognized as predominant in the substrate, by analysis with NMR techniques. With the same technique, the evolution with time of the
DI SERIO, MARTINO +2 more
openaire +2 more sources
2011
The reaction of 3,4-di-0-acetyl-D-xylal with 3 moles of synthesis gas (CO + 2H₂) under oxo conditions gave predominantly two isomeric 2,3-di-0-acetyl-1,5-anhydro-4-deoxy-hexitols, by addition of a hydroxymethyl group at C-1 of the glycal. The structures of the two polyols, obtained by deaeetylation of the reaction product and fractionation by paper ...
openaire +1 more source
The reaction of 3,4-di-0-acetyl-D-xylal with 3 moles of synthesis gas (CO + 2H₂) under oxo conditions gave predominantly two isomeric 2,3-di-0-acetyl-1,5-anhydro-4-deoxy-hexitols, by addition of a hydroxymethyl group at C-1 of the glycal. The structures of the two polyols, obtained by deaeetylation of the reaction product and fractionation by paper ...
openaire +1 more source
Hydroformylation of Renewables
2017The formal addition of a hydrogen atom and a formyl group to a double bond in the presence of a transition metal catalyst is called hydroformylation or oxo-synthesis. This reaction, discovered by Otto Roelen in 1938 during his investigations about the Fischer–Tropsch reaction, is one of the most important industrial applications of homogeneous ...
Tom Gaide, Arno Behr, Andreas J. Vorholt
openaire +1 more source