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(4RS,5RS)-5-hydroxy-2,4,6-trimethyl-heptan-3-one | 102285-80-3

中文名称
——
中文别名
——
英文名称
(4RS,5RS)-5-hydroxy-2,4,6-trimethyl-heptan-3-one
英文别名
(4RS,5RS)-5-hydroxy-2,4,6-trimethyl-heptan-3-one
(4RS,5RS)-5-hydroxy-2,4,6-trimethyl-heptan-3-one化学式
CAS
102285-80-3
化学式
C10H20O2
mdl
——
分子量
172.268
InChiKey
CVIMLYJMEKIKKL-IUCAKERBSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    1.86
  • 重原子数:
    12.0
  • 可旋转键数:
    4.0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.9
  • 拓扑面积:
    37.3
  • 氢给体数:
    1.0
  • 氢受体数:
    2.0

反应信息

  • 作为反应物:
    描述:
    参考文献:
    名称:
    1,3-versus 1,2-Asymmetric induction in the reduction of β-hydroxy ketones by intramolecular hydrosilylation
    摘要:
    The role of 1,2-asymmetric induction has been investigated in the 1,3-anti-selective reduction of beta-hydroxy ketones via intramolecular hydrosilylation. For the alpha-methyl beta-hydroxy ketones 2a, 3a, the effect of the alpha-substituent is negligible except that it appears to reinforce 1,3-asymmetric induction. For the alpha-ethyl beta-hydroxy ketones 2b, 3b, 1,3-asymmetric induction is dominant but not overwhelming. The super-acid TfOH2+ B(OTf)4- has been used as a catalyst for the hydrosilylation giving, in one case, an improved result when compared with previous methodology.
    DOI:
    10.1039/p19910001383
  • 作为产物:
    描述:
    2-甲基-3-戊酮异丁醛lithium hexamethyldisilazane 作用下, 以 三乙胺甲苯 为溶剂, 反应 0.5h, 以72%的产率得到(4RS,5RS)-5-hydroxy-2,4,6-trimethyl-heptan-3-one
    参考文献:
    名称:
    六甲基二硅叠氮锂介导的烯醇化:三乙胺对 E/Z 选择性和烯醇化物反应性的影响
    摘要:
    研究表明,三乙胺 (Et 3N)/甲苯中的六甲基二硅叠氮化锂 (LiHMDS) 可以快速烯醇化无环酮和酯,并具有高 E/Z 选择性。机理研究揭示了一种基于二聚体的机制,与之前对 LiHMDS/Et 3N 的研究一致。当使用 <2.0 当量的 LiHMDS 时,会发生 E/Z 平衡。与 THF 中的类似反应相比,对所得 Et 3N 溶剂化烯醇化物的羟醛缩合和爱尔兰-克莱森重排的研究显示出更高且通常互补的非对映选择性。Et 3N 溶剂化的烯醇化物还显示出爱尔兰-克莱森重排的显着(20 倍)加速,并具有自催化作用。讨论了胺溶剂化烯醇化物的可能重要性。
    DOI:
    10.1021/ja800250q
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文献信息

  • Directed reduction of .beta.-hydroxy ketones employing tetramethylammonium triacetoxyborohydride
    作者:D. A. Evans、K. T. Chapman、E. M. Carreira
    DOI:10.1021/ja00219a035
    日期:1988.5
    The mild reducing agent tetramethylammonium triacetoxyborohydride reduces acyclic P-hydroxy ketones to their corresponding anti diols with high diastereoselectivity. a-Alkyl substitution does not significantly affect the stereoselectivity of these reductions. In all cases examined, good to excellent yields of diastereomerically homogeneous diols were obtained. The mechanism of these reductions involves
    温和的还原剂四甲基铵三乙酰氧基硼氢化物以高非对映选择性将无环 P-羟基酮还原为其相应的反二醇。α-烷基取代不会显着影响这些还原的立体选择性。在所有检查的情况下,都获得了良好到极好的非对映异构体均质二醇的产率。这些还原的机制涉及三乙酰氧基硼氢化物阴离子将乙酸盐与底物醇进行酸促进的配体交换。所得氢化物中间体,大概是烷氧基二乙酰氧基氢化物,还原近端 OH 0 OH OH 0 Me,NHB(OAc), Mew Me&OR - OR Me he
  • Diastereoselective Aldol Addition Using Boron Trichloride or Alkoxydichloroborane
    作者:Hak-Fun Chow、Dieter Seebach
    DOI:10.1002/hlca.19860690309
    日期:1986.5.7
    Under carefully controlled conditions, boron trichloride or alkoxydichloroborane/ethyldiisopropylamine in CH2Cl2 can be used to effect diastereoselective aldol additions of ethyl ketones to saturated, α, β-unsaturated, or aromatic aldehydes. The CC bond formation takes place with relative topicity ul (‘syn,’ configuration of the aldols), in selectivities ranging from 90 to 99% ds (Tables 1–3). Mechanistic
    在精心控制的条件下,CH 2 Cl 2中的三氯化硼或烷氧基二硼烷/乙基二异丙胺可用于将乙基酮进行非对映选择性的醛醇缩合,形成饱和,α,β-不饱和或芳族醛。CC键的形成具有相对局部性ul(醛醇的“ syn ”构型),选择性范围为90%到99%ds(表1-3)。讨论了反应的机械方面。
  • Stereoselective reduction of β hydroxyketones to 1,3-diols highly selective 1,3-asymmetric induction via boron chelates
    作者:Koichi Narasaka、Fong-Chang Pai
    DOI:10.1016/0040-4020(84)80006-x
    日期:1984.1
    Highly selective asymmetric induction can be achieved in the reduction of acyclic β-hydroxyketones via boron chelates. Treatment of β-hydroxyketones (1) with tributyl or tri-isobutylborane and successively with sodium borohydride afforded syn-1,3-diols (3) in highly stereo-selective manner, Syn -α-substituted-β -hydroxyketones (8) were also reduced to give syn, syn-1,3-diols (9) exclusively. The reaction
    通过螯合物还原无环β-羟基酮可以实现高度选择性的不对称诱导。β羟基酮的治疗(1)用三丁基-或三- isobutylborane和依次用硼氢化钠,得到顺式-1,3-二醇(3在高度立体选择性的方式),Syn的-α取代-β-hydroxyketones(8)为也还原为仅生成syn,syn -1,3-二醇(9)。该反应进一步用于方便地制备3-脱氧己糖。
  • Stereoseletive Reduction of<i>β</i>-Hydroxy Ketones to 1,3-Diols with the Aid of a Terphenylboronic Acid
    作者:Hiroshi Yamashita、Koichi Narasaka
    DOI:10.1246/cl.1996.539
    日期:1996.7
    stereoselective reduction of acyclic and cyclic β-hydroxy ketones. The terphenylboronic acid 1 and acyclic β-hydroxy ketones 2 are converted to the corresponding boronates by azeotropic removal of water. The resulting boronates are treated in situ with reducing reagents to give syn 1,3-diols 3 almost exclusively. Anti α-substituted β-hydroxy ketones 8 are also reduced to give anti, anti 1,3-diol 9 stereoselectively
    1-Hydroxy-6,8-diphenyl-1,2,3,4-tetrahydro-2-oxa-1-boranaphthalene(三联苯硼酸 1)用于立体选择性还原无环和环状 β-羟基酮。三联苯硼酸 1 和无环 β-羟基酮 2 通过共沸去除转化为相应的硼酸酯。所得硼酸酯用还原剂原位处理以几乎完全得到syn 1,3-二醇3。抗 α-取代的 β-羟基酮 8 也被还原以立体选择性地产生抗、抗 1,3-二醇 9。此外,3-羟基-1-环戊酮的还原以高选择性得到顺式二醇11。
  • The directed reduction of β-hydroxy ketones employing Me4NHB(OAc)3
    作者:David A. Evans、Kevin T. Chapman
    DOI:10.1016/s0040-4039(00)85367-8
    日期:1986.1
    The diastereoseiective reduction of a range of acyclic β-hydroxy ketones with triacetoxyborohydride is described. In all cases, the anti 1,3-diol diastereomer is the principal product (eq 1).
    描述了用三乙酰氧基硼氢化物对一系列无环β-羟基酮进行非对映选择性还原。在所有情况下,抗1,3-二醇非对映异构体都是主要产物(式1)。
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