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(2S,4R)-5-(tert-butyldiphenylsilyloxy)-2,4-dimethylpentyl acetate | 176900-63-3

中文名称
——
中文别名
——
英文名称
(2S,4R)-5-(tert-butyldiphenylsilyloxy)-2,4-dimethylpentyl acetate
英文别名
(2S,4R)-5-((tert-Butyldiphenylsilyl)oxy)-2,4-dimethylpentyl acetate;[(2S,4R)-5-[tert-butyl(diphenyl)silyl]oxy-2,4-dimethylpentyl] acetate
(2S,4R)-5-(tert-butyldiphenylsilyloxy)-2,4-dimethylpentyl acetate化学式
CAS
176900-63-3
化学式
C25H36O3Si
mdl
——
分子量
412.645
InChiKey
NBNJBTGOTUWUQY-LEWJYISDSA-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

物化性质

  • 沸点:
    456.6±37.0 °C(Predicted)
  • 密度:
    1.01±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    4.79
  • 重原子数:
    29
  • 可旋转键数:
    11
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.48
  • 拓扑面积:
    35.5
  • 氢给体数:
    0
  • 氢受体数:
    3

上下游信息

  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

点击查看最新优质反应信息

文献信息

  • Synthesis of hydroxyphthioceranic acid using a traceless lithiation–borylation–protodeboronation strategy
    作者:Ramesh Rasappan、Varinder K. Aggarwal
    DOI:10.1038/nchem.2010
    日期:2014.9
    In planning organic syntheses, disconnections are most often made adjacent to functional groups, which assist in C–C bond formation. For molecules devoid of obvious functional groups this approach presents a problem, and so functionalities must be installed temporarily and then removed. Here we present a traceless strategy for organic synthesis that uses a boronic ester as such a group in a one-pot lithiation–borylation–protodeboronation sequence. To realize this strategy, we developed a methodology for the protodeboronation of alkyl pinacol boronic esters that involves the formation of a boronate complex with a nucleophile followed by oxidation with Mn(OAc)3 in the presence of the hydrogen-atom donor 4-tert-butylcatechol. Iterative lithiation–borylation–protodeboronation allows the coupling of smaller fragments to build-up long alkyl chains. We employed this strategy in the synthesis of hydroxyphthioceranic acid, a key component of the cell-wall lipid of the virulent Mycobacterium tuberculosis, in just 14 steps (longest linear sequence) with full stereocontrol. Coupling of carbamates with boronic esters followed by protodeboronation creates a new carbon–carbon bond, leaving behind no trace of the functional groups used to create it. Now, methodology for the protodeboronation of alkyl pinacol boronic esters has been developed and an iterative lithiation–borylation–protodeboronation strategy used in a 14-step stereocontrolled synthesis of hydroxyphthioceranic acid.
    在计划有机合成时,断链最常发生在官能团附近,有助于碳-碳键的形成。对于没有明显官能团的分子,这种方法提出了一个问题,因此必须暂时安装功能性基团,然后再移除。在这里,我们提出了一种无痕迹的有机合成策略,该策略使用硼酸酯作为在一锅锂化-硼化-去硼化序列中的这种功能基团。为了实现这一策略,我们开发了一种方法,用于对频哪醇硼酸酯的脱硼酸化,该方法涉及与亲核试剂形成硼酸盐络合物,然后在4-叔丁基邻苯二酚的氢原子供体存在下用Mn(OAc)3氧化。迭代锂化-硼化-脱硼化允许将较小片段耦合以构建长烷基链。我们将这一策略应用于制备强毒性结核杆菌细胞壁脂质的关键成分羟基紫胶虫酸的合成中,仅用14步(最长线性序列)就实现了立体控制。通过脱硼化将氨基甲酸酯与硼酸酯结合,可以创建新的碳-碳键,不会留下用于创建该键的官能团的任何痕迹。现在,已经开发出了频哪醇硼酸酯的脱硼化方法,并在14步立体控制合成羟基紫胶虫酸中使用了迭代锂化-硼化-脱硼化策略。
  • Assignment of Absolute Stereochemistry and Total Synthesis of (−)-Spongidepsin
    作者:Arun K. Ghosh、Xiaoming Xu
    DOI:10.1021/ol049292p
    日期:2004.6.1
    enantioselective total synthesis of (-)-spongidepsin (2) and elucidation of the absolute stereochemistry of its four stereocenters are described. Spongidepsin (2), a 13-membered depsipeptide isolated from the Vanuatu marine sponge Spongia sp., has shown potent antitumor properties against a variety of NCI tumor cell lines. Our synthesis is convergent, and the absolute stereochemistry of four of the five
    [结构:见正文]描述了对映体选择性合成(-)-海绵蛋白酶(2)以及阐明其四个立体中心的绝对立体化学。海绵肽(2)是一种从Vanuatu海洋海绵Spongia sp。分离的13元的十肽,已显示出对多种NCI肿瘤细胞系的有效抗肿瘤特性。我们的合成是收敛的,并且五个手性中心中的四个的绝对立体化学是通过合成指定的。
  • Chemoenzymatic Approach to the Total Synthesis of (+)-Bourgeanic Acid
    作者:Jhillu Yadav、Tenneti Rao、Nagendra Yadav、Kovvuru Rao、Basi Reddy、Ahmad Al Khazim Al Ghamdi
    DOI:10.1055/s-0031-1289699
    日期:2012.3
    highly stereoselective total synthesis of (+)-bourgeanic acid has been accomplished by an enzymatic desymmetrization approach to create two methyl chiral centers. Other key steps involved in this approach are a Wittig reaction, a Gilman reaction, and TEMPO/iodobenzene diacetate mediated selective oxidation of the 1,3-diol, Yamaguchi lactonization and lithium hydroxide mediated partial hydrolysis (saponification)
    已经通过酶促脱对称化方法产生了两个甲基手性中心,从而实现了(+)-布尔基尿酸的高度立体选择性全合成。此方法涉及的其他关键步骤是Wittig反应,Gilman反应和TEMPO /碘苯二乙酸酯介导的1,3-二醇的选择性氧化,山口内酯化作用和氢氧化锂介导的八元环双内酯的部分水解(皂化作用) 酶促不对称化-脂肪族底物-(+)-硼烷酸-硼烷内酯-(-)-半葡糖酸-Wittig反应-Gilman反应-山口内酯化
  • Synthesis of the alkaloid tyroscherin by an aldol/Curtius strategy
    作者:Markus Ugele、Martin E. Maier
    DOI:10.1016/j.tet.2010.02.034
    日期:2010.4
    The alkaloid tyroscherin (2), which contains a vicinal anti-amino alcohol subunit was prepared from 4-hydroxyphenylpropionic acid (5) and meso-diol 9. After desymmetrization of diol 9 and suitable protecting group manipulations, one terminus was extended via a Claisen rearrangement giving rise to enoate ent-15. The missing carbon on the other end could be incorporated using MeMgCl/CuBr·SMe2 leading
    由4-羟苯基丙酸(5)和内消旋二醇9制备了含有邻位抗氨基醇亚基的生物碱酪氨酸(2)。二醇desymmetrization后9和合适的保护基处理,一个末端延长通过Claisen重排引起烯酸ENT - 15。在另一端缺失的碳可以通过使用格氏引发剂/溴化亚铜·SMe的掺入2最终导致醛ENT - 22。酸5和醛衍生的酰化恶唑烷酮32ent - 22在醛醇缩合反应中合并。随后在羧基上的库尔修斯重排提供了酪氨酸(2)的氨基功能。在概念验证研究中,相同的策略用于制备酪氨酸类似物28。
  • Synthesis (and Alternative Proof of Configuration) of the Scyphostatin C(1‘)−C(20‘) Trienoyl Fragment
    作者:Thomas R. Hoye、Manomi A. Tennakoon
    DOI:10.1021/ol0058386
    日期:2000.5.1
    [GRAPHICS]Each of four diastereomers of structure 2, corresponding to the lipophilic side chain of scyphostatin (1), were prepared. Careful analysis of their NMR spectral data and comparison with those of the natural product corroborates the recently reported (Org. Lett. 2000, 2, 505) stereochemical assignment. A strategy for the stereoselective synthesis of 2 has been achieved.
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