[EN] EFFICIENT SYNTHESIS OF ALKYL CARBONATES<br/>[FR] SYNTHESE EFFICACE DE CARBONATES D'ALKYLES
申请人:UNIV SOUTH FLORIDA
公开号:WO2000050376A2
公开(公告)日:2000-08-31
Efficient synthetic methods towards mixed aliphatic carbonates through the three component couplings of aliphatic alcohols, alkyl halides and carbon dioxide in the presence of cesium carbonate and tetrabutylammonium iode (TBAI). Due to their enhanced nucleophilicities, cesium alkoxides are smoothly incorporated into CO2, allowing for mild reaction conditions such as ambient temperatures and short reaction durations. Various primary and secondary substrates are compatible under the standard conditions, offering high yields, while chiral templates such as α-hydroxy carbonyls are resistant to racemization.