homoallylation of aldehydes was achieved by the Ti–O temporary linker strategy. Propargylic and allylic alcohol derivatives were employed as convenient pronucleophiles, obviating prefabrication of propargylation/allylation reagents. It was surprising that 1,6-diastereoselectivity was affected by not only the Grignard reagent but also the reaction solvent.
通过 Ti-O 临时接头策略实现了醛的同炔丙基化和同烯丙基化中的立体
化学通讯。炔丙基和烯丙基醇衍
生物用作方便的亲核试剂,避免了炔丙基化/烯丙基化试剂的预制。令人惊讶的是,1,6-非对映选择性不仅受到
格氏试剂的影响,还受到反应溶剂的影响。