(S)-6-<(tert-Butyldiphenylsilyl)oxy>-5-methyl-1-hexene | 142459-36-7

• 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: (S)-6-<(tert-Butyldiphenylsilyl)oxy>-5-methyl-1-hexene
• 英文别名: tert-butyl-[(2S)-2-methylhex-5-enoxy]-diphenylsilane
• CAS: 142459-36-7
• 化学式: C₂₃H₃₂OSi
• 分子量: 352.592
• InChiKey: HMAQCXHUUCKFDC-FQEVSTJZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.17
• 重原子数：
  25
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.39
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (S)-6-<(tert-Butyldiphenylsilyl)oxy>-5-methyl-1-hexene 在 草酰氯 、 二甲基硫 、 氢氟酸 、 L-Selectride 、 臭氧 、 二甲基亚砜 、 三乙胺 、 红铝 、 叔丁醇 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 甲苯 、 乙腈 、 苯 为溶剂， 反应 33.5h， 生成 (4R,4aR,5S,8aR)-4,5-Dimethyl-3-oxoperhydroisochroman
  参考文献：
  名称：

  Total synthesis of tetronomycin

  摘要：

  The first total synthesis of (+)-tetronomycin (1), a novel tetronic acid ionophore antibiotic, has been achieved through the synthesis and assemblage of the four cyclic segments 4, 5, 7, and 8. Construction of the C5-C-13 cyclohexyl portion 5 involves as the key step either a Beckmann fragmentation of the bicyclic ketone oxime 45 or an L-Selectride-mediated reductive annulation of the nona-2,7-dienoate 53. The C-14-C28 polyether fragment 6 was constructed by a BF3-catalyzed coupling reaction of the C-14-C22 allylsilane 7 and the C23-C28 tetrahydrofuran 8 which were derived, respectively, from L-ascorbic acid or (R)-3-hydroxyisobutyrate and L-rhamnal. The union of 5 and 6 by an aldol condensation, followed by photoisomerization of the derived diastereomeric alpha,beta-unsaturated esters, provided (Z)-61, which was converted to the aldehyde 63. Subsequent acylation of the tetronate 4 with 63 via an aldol reaction-oxidation sequence afforded the protected tetronomycin 64. Final deprotection provided synthetic tetronomycin, which was characterized as its sodium salt.

  DOI：

  10.1021/jo00036a026
• 作为产物：
  描述：

  (S)-6-(1-Ethoxy-ethoxy)-5-methyl-hex-1-ene 在 咪唑 、 盐酸 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 5.67h， 生成 (S)-6-<(tert-Butyldiphenylsilyl)oxy>-5-methyl-1-hexene
  参考文献：
  名称：

  Total synthesis of tetronomycin

  摘要：

  The first total synthesis of (+)-tetronomycin (1), a novel tetronic acid ionophore antibiotic, has been achieved through the synthesis and assemblage of the four cyclic segments 4, 5, 7, and 8. Construction of the C5-C-13 cyclohexyl portion 5 involves as the key step either a Beckmann fragmentation of the bicyclic ketone oxime 45 or an L-Selectride-mediated reductive annulation of the nona-2,7-dienoate 53. The C-14-C28 polyether fragment 6 was constructed by a BF3-catalyzed coupling reaction of the C-14-C22 allylsilane 7 and the C23-C28 tetrahydrofuran 8 which were derived, respectively, from L-ascorbic acid or (R)-3-hydroxyisobutyrate and L-rhamnal. The union of 5 and 6 by an aldol condensation, followed by photoisomerization of the derived diastereomeric alpha,beta-unsaturated esters, provided (Z)-61, which was converted to the aldehyde 63. Subsequent acylation of the tetronate 4 with 63 via an aldol reaction-oxidation sequence afforded the protected tetronomycin 64. Final deprotection provided synthetic tetronomycin, which was characterized as its sodium salt.

  DOI：

  10.1021/jo00036a026

文献信息

• Total Synthesis and Biological Evaluation of (+)-Neopeltolide and Its Analogues
  作者：Haruhiko Fuwa、Asami Saito、Shinya Naito、Keiichi Konoki、Mari Yotsu-Yamashita、Makoto Sasaki

  DOI：10.1002/chem.200901675

  日期：2009.11.23

  The stereocontrolled total synthesis of the originally proposed (1) and correct (2) structures of (+)‐neopeltolide, a novel marine macrolide natural product with highly potent antiproliferative activity against several cancer cell lines as well as potent antifungal activity, has been achieved by exploiting a newly developed Suzuki–Miyaura coupling/ring‐closing metathesis strategy. Alkylborate 44, which

  已实现了最初提出的（1）和正确的（2）结构（+）-新去甲内酯的立体控制全合成，这是一种新型海洋大环内酯类天然产物，对多种癌细胞系具有高度有效的抗增殖活性，并且具有较强的抗真菌活性通过开发新开发的Suzuki-Miyaura耦合/闭合环置换策略。由碘化物34原位生成的烷基硼酸酯44通过Suzuki-Miyaura偶联剂与磷酸烯醇酯8偶联。衍生二烯45的闭环易位，然后进行立体选择性氢化，得到四氢吡喃47作为单一立体异构体，从34的高总收率。我们的战略融合，使我们构建的14元大环内酯核心结构2在一个快速和有效的方式。全合成的和合成的中间体和设计的合成类似物的生物学评价，进行建立的结构-活性关系2，导致结构上简单而有效的细胞毒性类似物的发现，9-demethylneopeltolide（54）。