One-pot sustainable synthesis of tertiary alcohols by combining ruthenium-catalysed isomerisation of allylic alcohols and chemoselective addition of polar organometallic reagents in deep eutectic solvents
作者:Luciana Cicco、María J. Rodríguez-Álvarez、Filippo M. Perna、Joaquín García-Álvarez、Vito Capriati
DOI:10.1039/c7gc00458c
日期:——
as (i) the reduction of a C–C double bond, (ii) the oxidation of a secondary carbinol moiety, and (iii) a chemoselective C–C bond formation, takes place in protic and biorenewable eutectic mixtures in a sequential one-pot fashion using a commercially and easily available catalytic system, with excellent conversions (up to 99% yield), at room temperature and under air in the last step, with no concomitant
的Ru(IV) -催化的氧化还原烯丙基醇具有,在第一时间,已成功地与化学选择性加成有机锂或有机镁试剂的给组合的异构化在原位形成酮,途中向叔醇,采用深共晶的溶剂作为环保的反应介质。整体转化正式涉及三个连续且不同的步骤,例如(i)还原CC双键,(ii)氧化次甲醇部分和(iii)形成化学选择性的CC键,使用市售易得的催化体系,以质子和生物可再生低共熔混合物的顺序一锅方式进行,最后一步在室温和空气中具有出色的转化率(高达99%的收率),没有伴随还原反应或所谓的醇化工艺,并具有高原子经济性,符合所谓的绿色化学原理。