(+/-)-(1'α,4'aα,8'aβ)-octahydro-5',5',8'a-trimethyl-spiro-<1,3-dioxolane-2,2'(1H)-naphthalene>-1'-methanol | 10528-17-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (+/-)-(1'α,4'aα,8'aβ)-octahydro-5',5',8'a-trimethyl-spiro-<1,3-dioxolane-2,2'(1H)-naphthalene>-1'-methanol
• 英文别名: 2,2-ethylenedioxy-5,5,8aβ-trimethyl-4aα-decahydro-1β-naphthalenemethanol；[(1'R,4'aR,8'aR)-5',5',8'a-trimethylspiro[1,3-dioxolane-2,2'-3,4,4a,6,7,8-hexahydro-1H-naphthalene]-1'-yl]methanol
• CAS: 10528-17-3；133007-82-6
• 化学式: C₁₆H₂₈O₃
• 分子量: 268.397
• InChiKey: CMXYUYVLPBNZPX-VNHYZAJKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  38.7
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (+/-)-(1'α,4'aα,8'aβ)-octahydro-5',5',8'a-trimethyl-spiro-<1,3-dioxolane-2,2'(1H)-naphthalene>-1'-methanol 在 4-甲基苯磺酸吡啶 作用下， 以 丙酮 为溶剂， 生成 drimane-8β,11-diol
  参考文献：
  名称：

  Remarkably Facile 1,3-Diol Fragmentation. Synthesis of a Seco-sesquiterpene of Tobacco

  摘要：

  在温和的条件下，由 2,6-二甲氧基-4-甲基苯基激活的苄基羟基被证明是 1,3-二醇裂解过程中的一种反应性极强的核苷酸。利用由此获得的碎片产物合成了 4-(2,2,6-三甲基-6-乙烯基环己基)-2-丁酮，这是一种仲半萜。

  DOI：

  10.1246/cl.1989.61
• 作为产物：
  描述：

  (1S,4aR,8aR)-3,4,4a,5,6,7,8,8a-octahydro-1-methoxycarbonyl-5,5,8a-trimethyl-trans-naphthalene-2(1H)-one 在 lithium aluminium tetrahydride 、 对甲苯磺酸 作用下， 以 四氢呋喃 、 苯 为溶剂， 生成 (+/-)-(1'α,4'aα,8'aβ)-octahydro-5',5',8'a-trimethyl-spiro-<1,3-dioxolane-2,2'(1H)-naphthalene>-1'-methanol
  参考文献：
  名称：

  Remarkably Facile 1,3-Diol Fragmentation. Synthesis of a Seco-sesquiterpene of Tobacco

  摘要：

  在温和的条件下，由 2,6-二甲氧基-4-甲基苯基激活的苄基羟基被证明是 1,3-二醇裂解过程中的一种反应性极强的核苷酸。利用由此获得的碎片产物合成了 4-(2,2,6-三甲基-6-乙烯基环己基)-2-丁酮，这是一种仲半萜。

  DOI：

  10.1246/cl.1989.61

文献信息

• An efficient approach to chiral nonracemic trans- and cis-decalin scaffolds for drimane and labdane synthesis
  作者：Gian Piero Pollini、Anna Bianchi、Alberto Casolari、Carmela De Risi、Vinicio Zanirato、Valerio Bertolasi

  DOI：10.1016/j.tetasy.2004.07.064

  日期：2004.10

  Optically active trans- and cis-ring junction decalinic intermediates, which represent useful precursors for the synthesis of more complex natural targets, have been conveniently prepared starting from the β-ketoester 2 obtained by standard chemistry from β-ionone and dimethyl carbonate. The chiral auxiliary (−)-menthol, easily attached to 2 through DMAP-catalyzed transesterification, allowed a clean separation

  光学活性的反式-和顺式-环结decalinic中间体，其表示用于更复杂的天然靶标合成中有用的前体，已被方便地制备从β酮酯起始2从β紫罗兰酮和碳酸二甲酯通过标准化学获得。易于通过DMAP催化的酯交换反应与2相连的手性助剂（-）-薄荷醇，可以干净地分离关键电环化步骤中获得的非对映异构体，并将其进一步精制为已经被制成十二烷基杜鹃花和拉丹烷倍半萜的手性中间体。
• 1,3-Diol Fragmentation Using a Reactive Benzylic Hydroxyl Group as a Nucleofuge. Synthesis of a Tobacco Sesquiterpene
  作者：Michiharu Kato、Youichi Tooyama、Akira Yoshikoshi

  DOI：10.1246/bcsj.64.50

  日期：1991.1

  A benzylic hydroxyl group activated by electron-donative aromatic function was found to be a remarkably reactive nucleofuge for 1,3-diol fragmentation. Thus, treatment of α-(2,6-dimethoxy-4-methylphenyl)-2β-hydroxy-2α,5,5,8aβ-tetramethyl-4aα-decahydro-lβ-naphthalenemethanol with pyridinium chloride or pyridinium p-toluenesulfonate in dichloromethane underwent the 1,3-diol fragmentation smoothly to produce r-1-[(E)-2-(2,6-dimethoxy-4-methylphenyl)ethenyl]-t-2-(3-oxobutyl)-1,3,3-trimethylcyclohexane (24) in quantitative yield. Starting from 24, a tobacco sesquiterpene, 4-(2,2,6-trimethyl-6-vinylcyclohexyl)-2-butanone, was synthesized in racemic form by seven steps.

  发现由供电子芳香族官能团激活的苄基羟基是 1,3-二醇裂解的显着反应性离核基团。因此，用氯化吡啶鎓或对甲苯磺酸吡啶鎓在二氯甲烷中处理α-(2,6-二甲氧基-4-甲基苯基)-2β-羟基-2α,5,5,8aβ-四甲基-4aα-十氢-1β-萘甲醇进行了处理1,3-二醇顺利裂解生成r-1-[(E)-2-(2,6-二甲氧基-4-甲基苯基)乙烯基]-t-2-(3-氧代丁基)-1,3,3定量产率的-三甲基环己烷(24)。以24为起始原料，通过7步外消旋形式合成了烟草倍半萜4-(2,2,6-三甲基-6-乙烯基环己基)-2-丁酮。
• Chemoenzymatic synthesis of (+)-totarol, (+)-podototarin, (+)-sempervirol, and (+)-jolkinolides E and D
  作者：Takahiro Miyake、Hideo Kigoshi、Hiroyuki Akita

  DOI：10.1016/j.tetasy.2007.11.024

  日期：2007.12

  The enzymatic resolution products [(1R,4aR,8aR)-1,2,3,4,4a,5,6,7,8,8a-decahydro-5,5,8a-trimethyl-2-oxo-trans-naphthalene-1-methanol-2-ethylene acetal (8aR)-7 (98% ee) and acetate of (IS,4aS,8aS)-1,2,3,4,4a,5,6,7,8,8a-decahydro-5,5,8a-trimethyl-2-oxo-trans-naphthalene-1-methanol-2-ethylene acetal} (8aS)-9 (>99% ee)] obtained by the lipase-catalyzed enantioselective acetylation of (+/-)-7 in the presence of vinyl acetate as an acyl donor were converted to the alpha,beta-unsaturated ketones (8aR)-6 and (8aS)-6, respectively. Concise syntheses of (+)-totarol 1, (+)-podototarin 2 and (+)-sempervirol 3 were achieved based on Michael reactions between (8aS)-6 and the appropriate P-keto ester followed by aldol condensation. The first chiral syntheses of (+)-jolkinolides E 4 and D 5 were achieved from (5R,10R,12R)-12-hydroxypodocarpa-8(14)-en-13-one 15 derived from (8aR)-6. (c) 2007 Elsevier Ltd. All rights reserved.
• Formal synthesis of (±)-Ambrox®
  作者：Achille Barco、Simonetta Benetti、Anna Bianchi、Alberto Casolari、Mario Guarneri、Gian P.Pollini

  DOI：10.1016/0040-4020(95)00444-d

  日期：1995.7

  The immediate precursor of (+/-)-Ambrox(R) has been conveniently prepared in a seven-step sequence starting from the readily available methyl 2-oxo-5,5,8a-trimethyldecahydronaphthalene 1-carboxylate 2, in turn derived by stannic chloride-mediated cyclization of methyl 3-oxo-5(2,6,6-trimethylcyclohexen-1-yl)pentanoate.
• KATO, MICHIHARU;TOOYAMA, YOUICHI;YOSHIKOSHI, AKIRA, BULL. CHEM. SOC. JAP., 64,(1991) N, C. 50-56
  作者：KATO, MICHIHARU、TOOYAMA, YOUICHI、YOSHIKOSHI, AKIRA

  DOI：——

  日期：——