(R)-2,3-dimethylbutanal | 49642-48-0

• 分子结构分类: 有机化合物 - 有机氧化合物 - 有机氧化物
• 英文名称: (R)-2,3-dimethylbutanal
• 英文别名: (R)-2,3-Dimethyl-butanal-(1)；(-)-2,3-Dimethyl-butanal；(R)-2,3-dimethyl-butyraldehyde；(2R)-2,3-Dimethylbutanal
• CAS: 49642-48-0
• 化学式: C₆H₁₂O
• 分子量: 100.161
• InChiKey: AKUUEDVRXOZTBF-LURJTMIESA-N

物化性质

• 沸点：
  110.8±8.0 °C(Predicted)
• 密度：
  0.797±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  7
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (R)-2,3-dimethylbutanal 在 chromium dichloride 、 lithium aluminium tetrahydride 、 叔丁基锂 、 copper(l) cyanide 作用下， 以 四氢呋喃 、 乙醚 、 正戊烷 为溶剂， 反应 7.5h， 生成 (3aR,3bS,5S,7aS,7bS,8S,9aS,10R,11S,12aS,12bS,12cR)-5-(tert-Butyl-dimethyl-silanyloxy)-2,2,7a,9a-tetramethyl-8-triethylsilanyloxy-10-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-hexadecahydro-1,3-dioxa-dicyclopenta[a,l]phenanthren-11-ol
  参考文献：
  名称：

  The Synthesis and Preliminary Biological Evaluation of a Novel Steroid with Neurotrophic Activity:  NGA0187

  摘要：

  A full account of the total synthesis of neurotrophic compound NGA0187 is provided. A key feature of the synthesis involved the direct selective oxidation of 6 alpha,7 beta-diol to install the unusual 6,7-ketol moiety and stereoselective conjugate addition of vinyl cuprate to enone. A preliminary evaluation of its ability to stimulate the neurite outgrowth was also evaluated with PC12 cell.

  DOI：

  10.1021/jo051556d
• 作为产物：
  描述：

  brassicasterol acetate 在 臭氧 作用下， 生成 (R)-2,3-dimethylbutanal
  参考文献：
  名称：

  Brassicasterol. II. Degradation by Ozone

  摘要：

  DOI：

  10.1021/ja01859a051

文献信息

• Sensing Remote Chirality: Stereochemical Determination of β-, γ-, and δ-Chiral Carboxylic Acids
  作者：Marina Tanasova、Mercy Anyika、Babak Borhan

  DOI：10.1002/anie.201410371

  日期：2015.3.27

  nonfunctionalizable stereocenters is a challenging task. Presented is a solution in which appropriately substituted bis(porphyrin) tweezers are used. Complexation of a suitably derivatized β‐, γ‐, or δ‐chiral carboxylic acid to the tweezer induces a predictable helicity of the bis(porphyrin), which is detected as a bisignate Cotton Effect (ECCD). The sign of the ECCD curve is correlated with the absolute

  确定带有远程不可官能化立体中心的小分子的绝对立体化学是一项艰巨的任务。提出了一种使用适当取代的双（卟啉）镊子的溶液。适当地衍生化的β-，γ-或δ-手性羧酸与镊子的络合可诱导双卟啉的可预测螺旋度，这被检测为二元棉花效应（ECCD）。ECCD曲线的符号基于派生的工作助记符以可预测的方式与基材的绝对立体化学相关。
• Highly Enantioselective Hydroformylation of Olefins Catalyzed by Rhodium(I) Complexes of New Chiral Phosphine−Phosphite Ligands
  作者：Kyoko Nozaki、Nozomu Sakai、Tetsuo Nanno、Takanori Higashijima、Satoshi Mano、Toshihide Horiuchi、Hidemasa Takaya

  DOI：10.1021/ja970049d

  日期：1997.5.1

  1‘-binaphthalen-2‘-yl (S)-1,1‘-binaphthalene-2,2‘-diyl phosphite [(R,S)-BINAPHOS, (R,S)-2a], was synthesized. Its Rh(I) complex was prepared, and its structure has been characterized by 1H and 31P NMR spectroscopy. Using Rh(I) complexes of (R,S)-2a and its enantiomer, highly enantioselective hydroformylation of styrene has been performed (94% ee, iso/normal = 88/12). The catalyst system was also effective

  一种新的手性膦-亚磷酸酯配体，(R)-2-(diphenylphosphino)-1,1'-binaphthalen-2'-yl (S)-1,1'-binaphthalene-2,2'-diyl phosphite [(R ,S)-BINAPHOS, (R,S)-2a]，合成。制备了其Rh(I)配合物，并通过1H和31P NMR光谱对其结构进行了表征。使用 (R,S)-2a 及其对映异构体的 Rh(I) 配合物，已经进行了苯乙烯的高度对映选择性加氢甲酰化 (94% ee, 异/正 = 88/12)。该催化剂体系对多种其他烯烃也有效。其他一些带有 1,1'-联萘和联苯骨架的膦-亚磷酸酯配体，例如 (S)-3,3'-dichloro-6-(diphenylphosphino)-2,2',4,4'-tetramethylbiphenyl-6' -yl (R)-1,1'-联萘-2,2'-二基亚磷酸酯
• 麦角甾醇及其衍生物的合成方法
  申请人：湖南科瑞生物制药股份有限公司

  公开号：CN114014903B

  公开（公告）日：2023-05-05

  本发明公开了麦角甾醇及其衍生物的合成方法，该合成方法以化合物V为原料，经侧链醛基化、wittig反应后得到麦角甾醇及其衍生物；该化合物V的结构式为：本发明提供了麦角甾醇及其衍生物的新的制备方法，通过合成的方式获得麦角甾醇，可针对性获得目标结构且收率高、纯度高。另外，本发明的合成路线短且绿色环保，适于工业化生产。
• Tortorella,V., Gazzetta Chimica Italiana, 1962, vol. 92, p. 271 - 286
  作者：Tortorella,V.

  DOI：——

  日期：——
• Effects of sulfur nutrition on the growth and photosynthesis of rice
  作者：Adoracion P. Resurreccion、Amane Makino、John Bennett、Tadahiko Mae

  DOI：10.1080/00380768.2001.10408424

  日期：2001.9

  Rice plants (Oryza sativa L. cv. IR72) were grown hydroponically in 1.0 mm SO42- for one week and transferred to 0, 0.01, 0.03, 0.1. 0.3, or 3 mM SO42-. An increase in the sulfate concentration in the medium up to 0.03 mM resulted in a significant increase in the relative growth rate (RGR) due to the increase in the net assimilation rate (NAR). The leaf blade and leaf sheath showed a linear increase in the total S content at 0 to 0.1 mm SO42- in the growth solution. Total S content in the roots continued to increase with increased S supply. Changes in the soluble S content followed the same pattern as the total S content but increased proportionally in the leaf sheath and roots. Total N content and N allocation to the leaves also decreased below 0.1 mm S. However, the decrease in the N content was not appreciable, compared with that of the S content. S-deficiency strongly decreased the leaf photosynthesis, which was caused by large decreases in the contents of chlorophyll and ribulose-1,5-bis-phosphate carboxylase/oxygenase (Rubisco) below 0.1 mM SO42- in the growth solution.