中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
5-氯间二甲苯-2,alpha,alpha'-三醇 | 4-chloro-2,6-bis(hydroxymethyl)phenol | 17026-49-2 | C8H9ClO3 | 188.611 |
3-甲基水杨酸 | 3-methylsalicylic acid | 83-40-9 | C8H8O3 | 152.15 |
2-羟基-3-甲基苯甲酸甲酯 | 3-methylsalicylic acid methyl ester | 23287-26-5 | C9H10O3 | 166.177 |
邻甲酚 | ortho-cresol | 95-48-7 | C7H8O | 108.14 |
2-羟基-3-甲基苯甲醛 | 2-methoxy-3-methylbenzaldehyde | 824-42-0 | C8H8O2 | 136.15 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-甲基水杨酸 | 3-methylsalicylic acid | 83-40-9 | C8H8O3 | 152.15 |
—— | 6,6'-dihydroxy-5,5'-dimethyl-3,3'-methanediyl-di-benzyl alcohol | 6641-13-0 | C17H20O4 | 288.343 |
—— | 2-tert-butyl-dimethylsilyloxymethyl-6-methyl phenol | 185302-70-9 | C14H24O2Si | 252.429 |
An enantioselective synthesis of (+)-8′-demethyl ABA (2) is described. The chiral intermediate 7 was prepared by yeast reduction of a substituted monoprotected cyclohexa-2,5-dien-1,4-dione (9) synthesized through a phenol oxidation. The scope and limitations of the phenol oxidation is described. 8′-Demethyl ABA shows ABA-like activity in wheat embryo germination inhibition, showing that the 8′-methyl group is not essential for biological activity. Key words: abscisic acid, phenol oxidation, yeast reduction.
Water-promoted