Racemization of α-Alkyl-β-Keto Esters and Enantioselective Total Synthesis of Two C-2′′′Epimers of Plant Glycerolipid Santinol C
作者:Wen-Ju Wu、Mei-Mei Li、Bo Liu、Yikang Wu
DOI:10.1002/ejoc.201900467
日期:2019.6.2
everyone's surprise, racemization of such optically active methine groups is not as fast as broadly presumed, especially under slightly acidic or neutral conditions. These previously hardly attainable species, including structurally complex ones such as santinol C, now can be readily accessed using Dess–Martin oxidation of the corresponding aldol as the final step of the synthesis along with specially
可能令所有人惊讶的是,这种旋光性次甲基的外消旋化速度不像人们普遍认为的那样快,尤其是在弱酸性或中性条件下。这些先前难以获得的物种,包括结构复杂的物种,例如三氢萘酚C,现在可以使用相应的羟醛的Dess-Martin氧化作为合成的最后步骤,以及经过特殊设计的便捷分离方案,可以很容易地获得。