(+)-monoisopinocampheylborane | 83730-00-1

• 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: (+)-monoisopinocampheylborane
• 英文别名: [(1S,2R,3S,5S)-2,6,6-trimethyl-3-bicyclo[3.1.1]heptanyl]borane
• CAS: 83730-00-1
• 化学式: C₁₀H₁₉B
• 分子量: 150.072
• InChiKey: ZFWNFCSCXODQSL-KZVJFYERSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.11
• 重原子数：
  11
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  (+)-monoisopinocampheylborane 生成 (-)-α-蒎烯
  参考文献：
  名称：

  BROWN, H. C.;JADHAV, P. K.;DESAI, M. C., J. AMER. CHEM. SOC., 1982, 104, N 24, 6844-6846

  摘要：

  DOI：
• 作为产物：
  描述：

  (+)-alpine boramine TMEDA complex 在 三氟化硼乙醚 作用下， 以 乙醚 为溶剂， 反应 3.0h， 以98%的产率得到(+)-monoisopinocampheylborane
  参考文献：
  名称：

  通过对映选择性自由基加氢烷基化反应合成（+）-布雷菲德菌素C。

  摘要：

  描述了从2-呋喃基环戊烯开始的非常简洁的（+）-布雷菲德菌素C的全合成。该方法基于前所未有的对映选择性自由基加氢炔基化工艺，可在一个步骤中引入两个环戊烷立体中心。呋喃取代基的使用允许在自由基过程中实现高反式非对映选择性，并且它包含处于与目标分子之一紧密相关的氧化态的天然产物的四个碳原子C 1 -C 4。八步合成需要进行六步纯化，并且提供（+）-布雷菲德菌素C的总收率为18％。

  DOI：

  10.1002/chem.201903392
• 作为试剂：
  描述：

  1,4-pentadien-3-oxo-1,5-dicarboxylic acid 在 (+)-monoisopinocampheylborane 作用下， 以 四氢呋喃 、 氯仿 、 N,N-二甲基甲酰胺 为溶剂， -25.0~20.0 ℃ 、500.0 MPa 条件下， 反应 58.0h， 生成 dimethyl (1R,2S,3R,4R,4aR,7S,8S,8aS,9aR,10S,10aS)-1,3,4,7,8,8a,9,9a-octahydro-3-hydroxy-2,4,5,7,10-pentamethyl-9-oxo-2H,10H-2,4a:7,10a-diepoxyanthracene-1,8-dicarboxylate
  参考文献：
  名称：

  Asymmetric Synthesis of Complicated Bicyclic and Tricyclic Polypropanoatesvia the DoubleDiels-Alder Addition of 2,2′-Ethylidenebis[3,5-dimethylfuran]

  摘要：

  A new, non-iterative method for the asymmetric synthesis of long-chain and polycyclic polypropanoate fragments starting from 2,2'-ethylidenebis[3,5-dimethylfuran] (2) has been developed. Diethyl (2E,5E)-4-oxohepta-2,5-dienoate (6) added to 2 to give a single meso-adduct 7 containing nine stereogenic centers. Its desymmetrization was realized by hydroboration with (+)-IpcBH(2) (isopinocampheylborane), leading to diethyl (1S,2R,3S,4S,4aS,7R,8R,8aR,9aS,10R,10aR)-1,3,4,7,8,8a,9,9a-octahydro-3-hydroxy-2,4,5,7,10-pentamethyl-9-oxo-2H,10H-2,4a : 7,10a-diepoxyanthracene-1,8-dicarboxylate ((+)-8; 78% e.e.). Alternatively, 7 was converted to meso-(1R,2R,4R,4aR,5S,7S,8S,8aR,9aS,10s,10aS)-1,8-bis(acetoxymethyl)-1,8,8a,9a-tetrahydro-2,4,5,7,10-pentamethly-2H-10H-2,4a :7,10a-diepoxyanthracene-3,6,9(4H,5H,7H)-trione (32) that was reduced enantioselectively by BH3 catalyzed by methyloxazaborolidine 19 derived form L-diphenylprolinol giving (1S,2S,4S,4aS,5S,6R,7R,8R,8aS,9aR,10R,10aS)-1,8-bis(acetoxymethyl)-1,8,8a,9a-tetrahydro-6-hydroxy-2,4,5,7,10-pentamethyl-2H,10H-2,4a :7,10a-diepoxyanthracene-3,9(4H,7H)-dione ((-)-33; 90% e.e.). Chemistry was explored to carry out chemoselective 7-oxabicylo[2.2.1]heptanone oxa-ring openings and intra-ring C-C bond cleavage. Polycclic polypropanoates as (1R,2S,3R,4R,4aR,5S,6R,7S,8R,9R,10R,11S,12aR)-1-(ethoxy-carbonyl)-1,3,4,7,8,9,10,11,12,12a-decahydro-3,11-dihydroxy-2,4,5,7,9-pentamethyl-12-oxo-2H,5H-2,4a :6,9 :6,11-triepoxybenzocyclodecene-10,8-carbolactone (51), (1S,2R,3R,4R,4aS,5S,7S,8R,9R,10R,12S,12aS)-1,10-bis(acet-oxymethyl)tetradecahydro-8-(methoxymethoxy)-2,4,5,7,9-pentamethyl-3,9-bis[[2-(trimethylsilyl)ethoxy]methoxy)-6,11-epoxycyclodecene-4a,6,11,12-tetrol((+)-83), and (1R,2R,3R,4aR,4bR,6S,6R,7R,8R,8aS,9S,10aR)-3,5-bis(acetoxymethyl)-4a,8a-dihydroxy-1-(methoxymethoxy)-2,6,8,9,10a-pentamethyl-2,7-bis([2-(trimethylsilyl)-ethoxy]methoxy)dodecahydrophenanthrene-4,10-dione (85) were obtained in few synthetic steps.

  DOI：

  10.1002/1522-2675(20010228)84:2<431::aid-hlca431>3.0.co;2-w

文献信息

• Enantioselective Hydroazidation of Trisubstituted Non-Activated Alkenes
  作者：Daniel Meyer、Philippe Renaud

  DOI：10.1002/anie.201703340

  日期：2017.8.28

  A one-pot procedure for the enantioselective hydroazidation of non-activated trisubstituted alkenes is described. Hydroboration with monoisopinocampheylborane (IpcBH2) provides dialkylboranes that are in situ selectively converted into monoalkyl-substituted catecholboranes; these undergo radical azidation upon treatment with benzenesulfonyl azide and a radical initiator. Enantiomerically enriched azides

  描述了用于非活化三取代烯烃的对映选择性加氢叠氮的一锅法方法。用单异opinocampheylborane（IpcBH 2）进行硼氢化反应可生成二烷基硼烷，该二烷基硼烷可在原位选择性转化为单烷基取代的儿茶酚硼烷；它们在用苯磺酰叠氮化物和自由基引发剂处理后进行自由基叠氮化。因此获得对映体富集的叠氮化物，产率为59-81％，对映选择性高达94：6 er（如果中间体二烷基硼烷通过结晶纯化则为98：2 er）。还描述了快速获得对映体纯的（+）-罗多卡因。使用其他芳烃磺酰基自由基捕集剂可以进行对映体选择性的氢烷基化，氢磺酰化和氢溴化反应，产率为71–86％。
• 不对称合成Vinigrol的方法
  申请人：北京大学

  公开号：CN111116310B

  公开（公告）日：2021-03-12

  本发明公开一种不对称合成Vinigrol的方法，通过oxy‑Cope重排反应构建十元碳环化合物，发展了一种跨环分子内Diels‑Alder/CO2脱除的串联反应得到Vinigrol关键的笼状骨架结构。在后续Vinigrol的合成中，通过单线态氧的[4+2]反应、还原反应及单线态氧氧化反应，实现关键中间体的氧化态调整，完成光学纯(‑)‑Vinigrol的合成。该方法也可用于合成光学纯(+)‑Vinigrol及消旋的(±)‑Vinigrol。Diels‑Alder/CO2脱除反应后的关键中间体也可得到多种Vinigrol类似物。合成中的反应操作简单，可广泛推广使用，为活性测试提供充足的样品。
• A Unified Approach to <i>trans</i>-Hydrindane Sesterterpenoids
  作者：Daniel T. Hog、Peter Mayer、Dirk Trauner

  DOI：10.1021/jo300726z

  日期：2012.7.6

  A synthetic approach to several sesterterpenoids containing an isopropyl trans-hydrindane system is presented. Its most remarkable feature is the stereochemical diversification of a common precursor through the choice of different hydrogenation conditions.
• Concise Total Syntheses of (+)-Strictifolione and (6<i>R</i>)-6-[(4<i>R</i>,6<i>R</i>)-4,6-Dihydroxy-10-phenyldec-1-enyl]-5,6-dihydro-2<i>H</i>-pyran-2-one
  作者：Shibing Tang、Xingang Xie、Xiaolei Wang、Liuer He、Ke Xu、Xuegong She

  DOI：10.1021/jo101875w

  日期：2010.12.3

  Concise and efficient asymmetric total syntheses of (+)-strictifolione 1 and (6R)-6-[(4R,6R)-4,6-dihydroxy-10-phenyldec-1-enyl]-5,6-dihydro-2H-pyran-2-one 2 have been achieved based on the strategic application of one-pot double allylboration and ring-closing metathesis reactions. The total syntheses proceeded in only five and seven steps, respectively, from readily available 3-butenal and represent the shortest syntheses of 1 and 2 reported to date.
• BROWN, HERBERT C.;CHO, BYUNG TAE;PARK, WON SUH, J. ORG. CHEM., 52,(1987) N 18, 4020-4024
  作者：BROWN, HERBERT C.、CHO, BYUNG TAE、PARK, WON SUH

  DOI：——

  日期：——