作者:Sen Liang、Baoguo Sun、Shaoxiang Yang、Yongguo Liu、Hongyu Tian、Yuping Liu、Haitao Chen
DOI:10.3184/174751914x13989627250405
日期:2014.6
Synthesis of (S)-3-mercapto-1-heptyl acetate was achieved in four steps. Sharpless asymmetric epoxidation of (E)-2-heptenol yielded (2R,3R)-2,3-epoxy-1-heptanol, which was treated with thiourea in the presence of Ti(OPri)4 to give (2S,3S)-2,3-epithio-1-heptanol, reduction of which followed by acetylation afforded (S)-3-mercapto-1-heptyl acetate in 91% ee. The optically active product possessed a tropical
(S)-3-mercapto-1-heptyl 乙酸酯的合成分四步完成。(E)-2-庚烯醇的 Sharpless 不对称环氧化产生 (2R,3R)-2,3-epoxy-1-heptol,在 Ti(OPri)4 存在下用硫脲处理得到 (2S,3S)- 2,3-epithio-1-heptol, 将其还原然后乙酰化得到 (S)-3-mercapto-1-heptyl 醋酸盐 (S)-3-mercapto-1-heptyl 91% ee。该旋光产品具有让人联想到芒果和百香果的热带水果香气,具有浆果、酯样、甜味和胡椒样特征。