2-hydroxy-2-hydroxymethyl-cyclohexanone | 1004-52-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-hydroxy-2-hydroxymethyl-cyclohexanone
• 英文别名: (R)-2-(hydroxymethyl)-2-hydroxycyclohexanone；(2R)-2-hydroxy-2-(hydroxymethyl)cyclohexan-1-one
• CAS: 1004-52-0；143076-53-3
• 化学式: C₇H₁₂O₃
• 分子量: 144.17
• InChiKey: UQURATNDEJJNEO-SSDOTTSWSA-N

物化性质

• 沸点：
  301.8±27.0 °C(Predicted)
• 密度：
  1.232±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.1
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  57.5
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  1-<<(tert-butyldimethylsilyl)oxy>methyl>cyclohexane-1,2-diol 在 重铬酸吡啶 、 四丁基氟化铵 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 20.33h， 生成 2-hydroxy-2-hydroxymethyl-cyclohexanone
  参考文献：
  名称：

  Asymmetric synthesis of tanshindiol A.

  摘要：

  The ultrasound-promoted Diels-Alder reaction of 3-methyl-4,5-benzofurandione (10) with appropriately substituted vinylcyclohexenes has led to the synthesis of tanshindiol A (9), a minor component of the Chinese traditional medicine, Dan Shen, prepared from the roots of Salvia miltiorrhiza Bunge. The regioselectivity of the cycloaddition was enhanced by the ultrasonication and was also strongly influenced by the solvent. The asymmetric synthesis of (+)-(4R)-tanshindiol A [(+)-(4R)-91, the naturally occurring enantiomer, proceeded from the optically enriched methyl 6-(benzoyloxy)-1-vinylcyclohexene-6-carboxylate [(-)-(R)-15] or 6-hydroxy-6-(hydroxymethyl)-l-vinylcyclohexene acetonide [(+)-(R)-291 (both 92% ee). Enantioselectivity in the preparation of these diene systems was accomplished by the benzoyl peroxide quench of the lithioenamine derived from methyl 1-oxocyclohexane-2-carboxylate and (S)-valine tert-butyl ester. This procedure, adapted from Koga's asymmetric alkylation of alpha-alkyl beta-keto esters, proved highly effective in preparing the necessary tertiary alcohol in protected form and with high optical purity.

  DOI：

  10.1021/jo00046a009

文献信息

• Direct asymmetric α-hydroxylation of β-hydroxyketones
  作者：Margus Lopp、Anne Paju、Tõnis Kanger、Tõnis Pehk

  DOI：10.1016/s0040-4039(97)01102-7

  日期：1997.7

  Direct oxidation of racemic beta-hydroxyketones 1a-c under Sharpless oxidation conditions resulted in the enantiomeric alpha,beta-dihydroxyketones 2a in 97% ee, 2b in 86% ee and 29 in 95% ee respectively, in 37-58% of isolated yield. The oxidation is assumed to proceed via an allylic enolate intermediate. (C) 1997 Elsevier Science Ltd.
• Direct asymmetric α-hydroxylation of 2-hydroxymethyl ketones
  作者：Anne Paju、Tõnis Kanger、Tõnis Pehk、Margus Lopp

  DOI：10.1016/s0040-4020(02)00760-3

  日期：2002.9

  A direct alpha-hydroxylation of racemic 2-hydroxymethyl ketones with the Sharpless epoxidation catalyst resulted in alpha,beta-dihydroxy ketones in high ee (up to 97%) and in moderate to good isolated yield (up to 58%). (C) 2002 Elsevier Science Ltd. All rights reserved.