(R)-1,2,3,4-Tetrahydro-9-methoxymethyl-2-(trans-2,4-pentadienoyl)-β-carboline

• 分子结构分类: 有机化合物 - 生物碱及其衍生物 - 哈马拉生物碱
• 英文名称: (R)-1,2,3,4-Tetrahydro-9-methoxymethyl-2-(trans-2,4-pentadienoyl)-β-carboline
• 英文别名: (2E)-1-[(1R)-9-(methoxymethyl)-1-prop-2-enyl-3,4-dihydro-1H-pyrido[3,4-b]indol-2-yl]penta-2,4-dien-1-one
• 化学式: C₂₁H₂₄N₂O₂
• 分子量: 336.434
• InChiKey: IMQVDTHKBREKDP-IPVAERDFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  25
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  34.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2,4-戊二烯酸 在 potassium hydride 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 3.58h， 生成 (R)-1,2,3,4-Tetrahydro-9-methoxymethyl-2-(trans-2,4-pentadienoyl)-β-carboline
  参考文献：
  名称：

  Preparation of both enantiomers of 1-allyl-1,2,3,4-tetrahydro-β-carboline using allyltin reagents and a chiral auxiliary derived from l-proline

  摘要：

  beta -Carboline, which had an acyl group derived from L-proline at the 9-position, reacted with allyltributyltin and 2,2,2-trichloroethyl chloroformate, to afford an 1-allyl-1,2-dihydro-beta -carboline derivative in a diastereo selective manner. The chiral acyl group at N-9 was readily eliminated by aqueous alkali to give a corresponding carboxylic acid. The formed 1-allyl-1,2-dihydro-beta -carboline was transformed via two reduction steps to 1-alkyl-1,2,3,4-tetrahydro-beta -carboline in high ee. When the allylation was carried out using tetraallyltin instead of allyltributyltin, the stereoselectivity was reversed, and the antipode of the allyl adduct was obtained in high yield and ee in the presence of tin(IV) tetraiodide. Thus, it was found that both enantiomers of 1-allyl-beta -carboline were obtained in good enantioselectivities by the use of the same chiral auxiliary. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(01)00684-6

文献信息

• A Novel Synthesis of Chiral 1-Allyl-1,2,3,4-tetrahydro-β-carboline Employing Allyltributyltin and Chiral Acyl Chlorides
  作者：Takashi Itoh、Yûji Matsuya、Yasuko Enomoto、Kazuhiro Nagata、Michiko Miyazaki、Akio Ohsawa

  DOI：10.1055/s-1999-2952

  日期：1999.11

  β-Carboline was acylated at its 9-position by a chiral acyl chloride, followed by reaction with allyltributyltin and 2,2,2-trichloroethyl chloroformate to afford an 1-allyl-1,2-dihydrocarboline derivative in a diasteroselective manner. The chiral acyl group at N-9 was readily eliminated by aqueous alkali to give carboxylic acid quantitatively without racemization on C-1 position. The formed 1-allyl-1,2-dihydro-β-carboline was transformed to 1-allyl-1,2,3,4-tetrahydro-β-carboline.

  β-咔啉在其9-位被手性酰氯酰化，然后与烯丙基三丁基锡和2,2,2-三氯乙基氯甲酸酯反应以非对映选择性方式提供1-烯丙基-1,2-二氢咔啉衍生物。 N-9位上的手性酰基很容易被碱水溶液消除，定量地得到羧酸，而C-1位上没有外消旋化。形成的1-烯丙基-1,2-二氢-β-咔啉转化为1-烯丙基-1,2,3,4-四氢-β-咔啉。
• Preparation of both enantiomers of 1-allyl-1,2,3,4-tetrahydro-β-carboline using allyltin reagents and a chiral auxiliary derived from l-proline
  作者：Takashi Itoh、Yûji Matsuya、Yasuko Enomoto、Akio Ohsawa

  DOI：10.1016/s0040-4020(01)00684-6

  日期：2001.8

  beta -Carboline, which had an acyl group derived from L-proline at the 9-position, reacted with allyltributyltin and 2,2,2-trichloroethyl chloroformate, to afford an 1-allyl-1,2-dihydro-beta -carboline derivative in a diastereo selective manner. The chiral acyl group at N-9 was readily eliminated by aqueous alkali to give a corresponding carboxylic acid. The formed 1-allyl-1,2-dihydro-beta -carboline was transformed via two reduction steps to 1-alkyl-1,2,3,4-tetrahydro-beta -carboline in high ee. When the allylation was carried out using tetraallyltin instead of allyltributyltin, the stereoselectivity was reversed, and the antipode of the allyl adduct was obtained in high yield and ee in the presence of tin(IV) tetraiodide. Thus, it was found that both enantiomers of 1-allyl-beta -carboline were obtained in good enantioselectivities by the use of the same chiral auxiliary. (C) 2001 Elsevier Science Ltd. All rights reserved.