环丁烯酮的连续对映选择性还原/捕获/交叉偶联反应提供了一系列手性反式-2,3-二取代-4,4-二取代环丁酮。该策略应用于多种含偕二甲基环丁烷的天然产物的合成,包括(+)-β-石竹烯、(−)-rumphelanones A−C、(−)-1β,9α H -5-linoleoyloxy-4 ,5-仲石竹烯-4-酮和(-)-莱科维醛。
Utilizing the high dielectric constant of water: efficient synthesis of amino acid-derivatized cyclobutenones
作者:Jun Li、Yongbin Han、Teresa B. Freedman、Shifa Zhu、Deborah J. Kerwood、Yan-Yeung Luk
DOI:10.1016/j.tetlet.2008.01.121
日期:2008.3
This work reports the use of water as a solvent to facilitate an efficient syntheses of amino acid-derivatized cyclobutenone. Kinetics studies in different solvents reveals that high dielectric constants of the solvents are the primary attribute for the highyielding and fast rate for this reaction. This class of substitution reactions in water also proceeds efficiently with a wide range of amino acids