中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
山道年 | santonin | 481-06-1 | C15H18O3 | 246.306 |
—— | (-)-Santonin-A | —— | C15H18O3 | 246.306 |
—— | (+)-Dihydro-β-santonin | 909276-20-6 | C15H20O3 | 248.322 |
—— | (+/-)-Dihydrosantonin-C | —— | C15H20O3 | 248.322 |
1,2-二氢-alpha-山道年 | (+/-)-Dihydro-α-santonin | 18409-93-3 | C15H20O3 | 248.322 |
—— | 11,13-dihydro-6β-tuberiferin | 132185-35-4 | C15H20O3 | 248.322 |
—— | (11S)-4α-bromo-3-oxoeudesm-1-eno-12,6β-lactone | 539802-38-5 | C15H19BrO3 | 327.218 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
山道年 | santonin | 481-06-1 | C15H18O3 | 246.306 |
—— | oxoisodehydroleucodin | 107693-45-8 | C15H14O4 | 258.274 |
—— | methyl (11S)-3-oxoeudesma-1,4-dien-13-oate | 18172-86-6 | C16H22O3 | 262.349 |
—— | 3-oxoeudesm-1,11(13)-dieno-12,6β-lactone | —— | C15H18O3 | 246.306 |
—— | 3α-hydroxy-5,6αH,4,11βH-eudesm-1-en-6,12-olide | 132185-37-6 | C15H22O3 | 250.338 |
—— | 3β-hydroxy-5,6αH,4,11βH-eudesm-1-en-6,12-olide | 132185-36-5 | C15H22O3 | 250.338 |
—— | 11,13-dihydro-6β-tuberiferin | 132185-35-4 | C15H20O3 | 248.322 |
—— | 1,1-ethylenedioxy-5,6αH,4,11βH-eudesm-3-en-6,12-olide | 132294-82-7 | C17H24O4 | 292.375 |
—— | 4-epi-6β-vulgarin | 132185-40-1 | C15H20O4 | 264.321 |
—— | 6β-vulgarin | 132185-41-2 | C15H20O4 | 264.321 |
—— | 1α-hydroxy-5,6αH,4,11βH-eudesm-2-en-6,12-olide | 132185-38-7 | C15H22O3 | 250.338 |
—— | 1-oxo-5,6αH,4,11βH-eudesm-2-en-6,12-olide | 132185-39-8 | C15H20O3 | 248.322 |
—— | 2-bromo-3-oxo-5,6αH,4,11βH-eudesm-1-en-6,12-olide | 62326-52-7 | C15H19BrO3 | 327.218 |
An efficient, 8-step synthesis of (+)-α-cyperone (1) from (−)-α-santonin (5) is described. The key steps of the sequence involve the conversion of the keto ester 8 into the substituted octalone 9, by hydrogenation of the former in the presence of the homogeneous catalyst tris(triphenylphosphine)-chlororhodium, and the pyrolysis of the keto carbonate 16, which produces (+)-α-cyperone in good yield.