(2R)-2-Methyl-5-<<(1,1-dimethylethyl)diphenylsilyl>oxy>pentanal | 166239-59-4

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: (2R)-2-Methyl-5-<<(1,1-dimethylethyl)diphenylsilyl>oxy>pentanal
• 英文别名: (R)-5-((tert-butyldiphenylsilyl)oxy)-2-methylpentanal；(2R)-5-[tert-butyl(diphenyl)silyl]oxy-2-methylpentanal
• CAS: 166239-59-4
• 化学式: C₂₂H₃₀O₂Si
• 分子量: 354.565
• InChiKey: BBBMTZTZZSKZCF-LJQANCHMSA-N

物化性质

• 沸点：
  417.3±37.0 °C(Predicted)
• 密度：
  1.00±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.18
• 重原子数：
  25
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (2R)-2-Methyl-5-<<(1,1-dimethylethyl)diphenylsilyl>oxy>pentanal 在 bis(acetylacetonate)oxovanadium 、 palladium dichloride 吡啶 、 2,6-二甲基吡啶 、 叔丁基过氧化氢 、 4-二甲氨基吡啶 、 sodium hydroxide 、 重铬酸吡啶 、 9-borabicyclo[3.3.1]nonane dimer 、 正丁基锂 、 samarium diiodide 、 草酰氯 、 三甲基溴硅烷 、 三丁基膦 、 3 A molecular sieve 、 4 A molecular sieve 、 三氟化硼乙醚 、 氢氟酸 、 四丁基氟化铵 、 水 、 双氧水 、 氧气 、 三乙基硅基三氟甲磺酸酯 、 四氯化钛 、 三乙基硼氢化锂 、 碳酸氢钠 、 potassium carbonate 、 戴斯-马丁氧化剂 、 二甲基亚砜 、 三乙胺 、 N,N-二异丙基乙胺 、 间氯过氧苯甲酸 、 copper(l) chloride 作用下， 以 四氢呋喃 、 甲醇 、 乙醚 、 正己烷 、 二氯甲烷 、 N,N-二甲基甲酰胺 、 甲苯 、 乙腈 为溶剂， 反应 145.91h， 生成 互变霉素
  参考文献：
  名称：

  Total Synthesis of Tautomycin

  摘要：

  A convergent stereocontrolled synthesis of the antifungal antibiotic tautomycin, a potent protein phosphatases inhibitor, has been achieved first via key aldol coupling of two large subunits, a right-hand C-1-C-21 ketone and a left-hand aldehyde (left from C-22). The C-1-C-10 segment was synthesized through a remote stereochemical control process using a spiroketal template. After joining with the C-11-C-18 segment, the spiroketal moiety was selectively constructed. Then the right-hand C-1-C-21 ketone was synthesized via Roush asymmetric crotylboration. The left-hand aldehyde was prepared from a C-21-C-26 Segment and a dialkylmaleic anhydride segment. Completely stereoselective assemblage of the two subunits, the right-hand and the left-hand, was achieved by employing the Mukaiyama aldol reaction. Further functional group manipulations including desilylation, oxidation at C-2, and deprotection of tert-butyl ester with concomitant anhydride formation provided tautomycin which was identical with the natural product. As a preliminary study, derivatizations and degradation of the natural product were also examined to support the total synthesis.

  DOI：

  10.1021/jo00121a026
• 作为产物：
  描述：

  1-(t-butyldiphenylsilyloxy)-3-iodopropane 在 正丁基锂 、 ammonia borane 、 戴斯-马丁氧化剂 、 二异丙胺 、 lithium chloride 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 为溶剂， 反应 15.5h， 生成 (2R)-2-Methyl-5-<<(1,1-dimethylethyl)diphenylsilyl>oxy>pentanal
  参考文献：
  名称：

  Application of In Situ-Generated Rh-Bound Trimethylenemethane Variants to the Synthesis of 3,4-Fused Pyrroles

  摘要：

  Rh-bound trimethylenemethane variants generated from the interaction of a Rh-carbenoid with an allene have been applied to the synthesis of substituted 3,4-fused pyrroles. The pyrrole products are useful starting points for the syntheses of various dipyrromethene ligands. Furthermore, the methodology has been applied to a synthesis of the natural product cycloprodigiosin, which demonstrates antitumor and immunosuppressor activity.

  DOI：

  10.1021/ja401380d

文献信息

• A Catalyst Designed for the Enantioselective Construction of Methyl- and Alkyl-Substituted Tertiary Stereocenters
  作者：Aurélie Claraz、Gokarneswar Sahoo、Dénes Berta、Ádám Madarász、Imre Pápai、Petri M. Pihko

  DOI：10.1002/anie.201509302

  日期：2016.1.11

  identifying substituent effects on enantioselectivity, was designed. The catalytic process allows rapid access to chiral thioesters, amides, aldehydes, and ketones bearing an α‐methyl stereocenter with excellent enantioselectivities, and allowed rapid access to the C4–C13 segment of (−)‐bistramide A. DFT calculations rationalized the observed sense and level of enantioselectivity.

  叔甲基取代的立体中心存在于许多具有生物活性的天然产物中。本文报道的是使用甲硅烷基烯酮硫缩醛和丙烯醛之间的Mukaiyama-Michael反应访问这些手性结构单元的催化对映选择性方法。为了实现对亲核试剂的远程对映体控制，设计了一种新型的亚胺催化剂，该催化剂通过三参数调节和确定取代基对对映选择性的影响进行了优化。催化过程可以快速进入具有出色对映选择性的带有α-甲基立体中心的手性硫代酯，酰胺，醛和酮，并允许快速进入（-）-双链酰胺A的C4-C13链段。DFT计算使观察到的感觉合理化和对映选择性水平。
• Total Synthesis of Strasseriolide A
  作者：Moinul Haque Sahana、Dhiman Saha、Rajib Kumar Goswami

  DOI：10.1021/acs.joc.2c01595

  日期：2022.9.2

  Stereoselective total synthesis of structurally intriguing antimalarial macrolide strasseriolide A has been accomplished by adopting a convergent approach. The salient features of this synthesis include Co(BH4)2-mediated selective reduction of conjugated olefin, Crimmins propionate aldol, Evans alkylation, intermolecular Horner–Wadsworth–Emmons olefination, Yamaguchi macrolactonization, and selective

  结构上有趣的抗疟疾大环内酯类strasseriolide A的立体选择性全合成已通过采用收敛方法完成。该合成的显着特征包括 Co(BH 4 ) 2介导的共轭烯烃选择性还原、Crimmins 丙酸醛醇、Evans 烷基化、分子间 Horner-Wadsworth-Emmons 烯化、Yamaguchi 大环内酯化和酯部分的选择性皂化。内酯功能。发现 strasseriolide A的13 C 1 H} NMR 数据对其溶液浓度非常敏感。
• Synthetic study on tautomycin. Stereocontrolled synthesis of C(1)C(18) fragment using a strategy of selective reduction of spiroketal
  作者：Masato Oikawa、Hideaki Oikawa、Akitami Ichihara

  DOI：10.1016/s0040-4039(00)74091-3

  日期：1993.7

  A stereocontrolled synthesis of C(1)-C(18) fragment of tautomycin is accomplished employing asymmetric crotylboration, selective reduction of spiroketal, and addition of crotylstannane as the key steps.
• Total Synthesis of Tautomycin
  作者：Masato Oikawa、Tohru Ueno、Hideaki Oikawa、Akitami Ichihara

  DOI：10.1021/jo00121a026

  日期：1995.8

  A convergent stereocontrolled synthesis of the antifungal antibiotic tautomycin, a potent protein phosphatases inhibitor, has been achieved first via key aldol coupling of two large subunits, a right-hand C-1-C-21 ketone and a left-hand aldehyde (left from C-22). The C-1-C-10 segment was synthesized through a remote stereochemical control process using a spiroketal template. After joining with the C-11-C-18 segment, the spiroketal moiety was selectively constructed. Then the right-hand C-1-C-21 ketone was synthesized via Roush asymmetric crotylboration. The left-hand aldehyde was prepared from a C-21-C-26 Segment and a dialkylmaleic anhydride segment. Completely stereoselective assemblage of the two subunits, the right-hand and the left-hand, was achieved by employing the Mukaiyama aldol reaction. Further functional group manipulations including desilylation, oxidation at C-2, and deprotection of tert-butyl ester with concomitant anhydride formation provided tautomycin which was identical with the natural product. As a preliminary study, derivatizations and degradation of the natural product were also examined to support the total synthesis.
• Application of In Situ-Generated Rh-Bound Trimethylenemethane Variants to the Synthesis of 3,4-Fused Pyrroles
  作者：Erica E. Schultz、Richmond Sarpong

  DOI：10.1021/ja401380d

  日期：2013.3.27

  Rh-bound trimethylenemethane variants generated from the interaction of a Rh-carbenoid with an allene have been applied to the synthesis of substituted 3,4-fused pyrroles. The pyrrole products are useful starting points for the syntheses of various dipyrromethene ligands. Furthermore, the methodology has been applied to a synthesis of the natural product cycloprodigiosin, which demonstrates antitumor and immunosuppressor activity.