1,2-dihydro-ψ,ψ-carotene | 27299-56-5

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: 1,2-dihydro-ψ,ψ-carotene
• 英文别名: 1,2-Dihydro-ψ,ψ-caroten；1,2-Dihydrolycopen；1,2-Dihydrolycopin；1.2-Dihydrolycopen；1,2-Dihydrolycopene；(6E,8E,10E,12E,14E,16E,18E,20E,22E,24E,26E)-2,6,10,14,19,23,27,31-octamethyldotriaconta-2,6,8,10,12,14,16,18,20,22,24,26-dodecaene
• CAS: 27299-56-5；31010-36-3；113625-95-9
• 化学式: C₄₀H₅₈
• 分子量: 538.901
• InChiKey: AQUGAIXUCCPEFP-GYZMGTAESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  16
• 重原子数：
  40
• 可旋转键数：
  17
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  6-甲基-2-庚酮 生成 1,2-dihydro-ψ,ψ-carotene
  参考文献：
  名称：

  Bacterial Carotenoids. XLVIII. Total Syntheses of Carotenes of the 1,2-Dihydro Series.

  摘要：

  The total syntheses of 1,2,7,8,1',2',7',8'-octahydro-psi,psi-carotene (1), 1,2,7,8-tetrahydro-psi,psi-carotene (2), 1,2,1',2'-tetradehydro-psi,psi-carotene (3), 1,2-dihydro-psi,psi-carotene (4), 1,2-dihydor-3,4-didehydro-psi,psi-carotene (5), and 1,2,1',2'-tetrahydro-3,4,3',4'-tetrahydro-psi,psi-carotene (6) are described. The properties of products and intermediates, including the three new apocarotenals 1,2,7,8-tetrahydro-12'-apo-psi-caroten-12'-al (20), 1,2-dihydro-8'-apo-pse-caroten-8'-al (25), and 1,2-dihydro-3,4-didehydro-8'-apo-psi-carotene-8'-al (32), are reported. A fragment ion at M68 on electron impact appears to be characteristic for carotenoids with a 1,2,7,8-tetrahydro end-group.

  DOI：

  10.3891/acta.chem.scand.29b-1015

文献信息

• Bacterial Carotenoids. XLVIII. Total Syntheses of Carotenes of the 1,2-Dihydro Series.
  作者：Åse Eidem、Richard Buchecker、Helge Kjøsen、Synnøve Liaaen-Jensen

  DOI：10.3891/acta.chem.scand.29b-1015

  日期：——

  The total syntheses of 1,2,7,8,1',2',7',8'-octahydro-psi,psi-carotene (1), 1,2,7,8-tetrahydro-psi,psi-carotene (2), 1,2,1',2'-tetradehydro-psi,psi-carotene (3), 1,2-dihydro-psi,psi-carotene (4), 1,2-dihydor-3,4-didehydro-psi,psi-carotene (5), and 1,2,1',2'-tetrahydro-3,4,3',4'-tetrahydro-psi,psi-carotene (6) are described. The properties of products and intermediates, including the three new apocarotenals 1,2,7,8-tetrahydro-12'-apo-psi-caroten-12'-al (20), 1,2-dihydro-8'-apo-pse-caroten-8'-al (25), and 1,2-dihydro-3,4-didehydro-8'-apo-psi-carotene-8'-al (32), are reported. A fragment ion at M68 on electron impact appears to be characteristic for carotenoids with a 1,2,7,8-tetrahydro end-group.