中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1,4,5,8-四甲氧基萘-2-甲醛 | 1,4,5,8-tetramethoxynaphthalene-2-carbaldehyde | 88818-28-4 | C15H16O5 | 276.289 |
—— | 1,4,5,8-tetramethoxy-naphthalene-2-carbonitrile | 97476-17-0 | C15H15NO4 | 273.288 |
The synthesis of (+)-(S)-1′,4-dihydroxy-2,3′-dimethyl-1,2′-binaphthalene-5,5′,8,8′-tetrone (62) and (+)-(S)-4,5′,8′-trihydroxy-2,3′-dimethyl-1,2′-binaphthalene-1′,4′,5,8-tetrone (55), compounds which are atrop-isomeric with the naturally occurring binaphthoquinones (–)-isodiospyrin and (–)-8′-hydroxyisodiospyrin, respectively, is described. The binaphthyl linkages in these compounds were stereoselectively constructed by using oxazoline chemistry. The stereochemical assignments were based on X-ray crystal structure determination and circular dichroic spectroscopy.