中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
甲基丙烯酸甲酯 | methacrylic acid methyl ester | 80-62-6 | C5H8O2 | 100.117 |
—— | (E)-3-iodo-2-methacrylic acid | 128836-43-1 | C4H5IO2 | 211.987 |
3-溴-2-甲基甲基丙烯酸酯 | methyl (E)-3-bromo-2-methyl-2-propenoate | 40053-01-8 | C5H7BrO2 | 179.013 |
Two symmetrical C7,C8-acetylenic carotenoids have been stereoselectively prepared using a bi-directional Horner–Wadsworth–Emmons condensation of the C10-dialdehyde and C15-phosphonates.