Copper-catalyzed C–C bond-forming transformation of CO<sub>2</sub> to alcohol oxidation level: selective synthesis of homoallylic alcohols from allenes, CO<sub>2</sub>, and hydrosilanes
A highly selective carbon-carbon bond-forming transformation of carbon dioxide (CO2) to the alcoholoxidation level has been disclosed. By employing a copper/bisphosphine catalyst system and hydrosilanes as the mild and...
Single-pot triple catalytic transformations based on coupling of in situ generated allyl boronates with in situ hydrolyzed acetals
作者:Nicklas Selander、Kálmán J. Szabó
DOI:10.1039/b804920c
日期:——
In situ hydrolyzed acetals were coupled with in situgenerated allyl boronates in a one-pot procedure, affording regio- and stereodefined homoallyl alcohols, epoxides and amino alcohols.
All-Carbon Quaternary Centers via Ruthenium-Catalyzed Hydroxymethylation of 2-Substituted Butadienes Mediated by Formaldehyde: Beyond Hydroformylation
作者:Tomas Smejkal、Hoon Han、Bernhard Breit、Michael J. Krische
DOI:10.1021/ja904124b
日期:2009.8.5
Ruthenium-catalyzedtransferhydrogenation of 2-substituted dienes 1a-i in the presence of paraformaldehyde results in reductivecoupling at the 2-position to furnish the hydroxymethylation products 3a-i, which embody all-carbon quaternary centers. Reductivecoupling of diene 1g to paraformaldehyde under standard conditions, but employing deuterio-paraformaldehyde, 2-propanol-d(8), or both, corroborated