作者:José Luis Garcia Ruano、Amelia Tito、Rafael Culebras
DOI:10.1016/0040-4020(95)01048-3
日期:1996.2
Reactions of several β-hydroxyketones with different methylation reagents are reported. The de's are moderated or good (40–75%) and slightly change with the relative steric size of the R groups at the starting hydroxyketone. The syn-diols are predominant in reactions with Me3Al/ZnBr2 and MeLi/Me3Al, whereas the anti-diols are the major ones with MeLi/ZnBr2. The method has been used to synthesize optically
报道了几种β-羟基酮与不同的甲基化试剂的反应。该德的进行审核或良好(40-75%)中并用在起始羟基酮的R基团的相对立体尺寸略微变化。的顺式-diols是在与我的反应占优势3的Al / ZnBr 2和的MeLi / Me的3的Al,而抗-diols是主要的用的MeLi / ZnBr 2。该方法已用于合成光学纯的(+)-(2 R,4 R)-2-苯基-2,4-戊二醇。