中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
苯酐 | phthalic anhydride | 85-44-9 | C8H4O3 | 148.118 |
Thermolysis of (3R:5R)-(+)-trans-3,5-dimethyl-1-pyrazoline produces 25.6% of trans-1,2-dimethyl-cyclopropane of 23% optical purity having the S:S configuration. Thermolysis mechanisms which explain the racemization and the double inversion process are discussed. The absolute configuration of active-2,4-pentanediol and 2,4-dibromopentane is correlated with that of 4-hydroxy-1-pentene.