(S)-2-[(4R,5S,6S)-2,2-Di-tert-butyl-6-((S)-1-[1,3]dithiolan-2-yl-ethyl)-5-methyl-[1,3,2]dioxasilinan-4-yl]-pentan-3-one | 193416-16-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二硫杂环戊烷
• 英文名称: (S)-2-[(4R,5S,6S)-2,2-Di-tert-butyl-6-((S)-1-[1,3]dithiolan-2-yl-ethyl)-5-methyl-[1,3,2]dioxasilinan-4-yl]-pentan-3-one
• 英文别名: (2S)-2-[(4R,5S,6S)-2,2-ditert-butyl-6-[(1S)-1-(1,3-dithiolan-2-yl)ethyl]-5-methyl-1,3,2-dioxasilinan-4-yl]pentan-3-one
• CAS: 193416-16-9
• 化学式: C₂₂H₄₂O₃S₂Si
• 分子量: 446.791
• InChiKey: HFFOAKZEDDGNNC-DZBHQSCQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.51
• 重原子数：
  28
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.95
• 拓扑面积：
  86.1
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (S)-2-[(4R,5S,6S)-2,2-Di-tert-butyl-6-((S)-1-[1,3]dithiolan-2-yl-ethyl)-5-methyl-[1,3,2]dioxasilinan-4-yl]-pentan-3-one 在 mercury(II) perchlorate 、 phosphate buffer pH 7.4 、 (E)-(4R)-4,6-dimethyl-non-6-en-3-one 、 四氯化钛 、 戴斯-马丁氧化剂 、 氟化氢吡啶 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 为溶剂， 反应 6.58h， 生成 denticulatin A
  参考文献：
  名称：

  Enantioselective total synthesis of (−)-denticulatins A and B using a novel group-selective aldolization of a meso dialdehyde as a key step

  摘要：

  The diastereoselective synthesis of (-)-denticulatin A (1a) was achieved for the first time in 9 steps (41% yield) based on a novel group-selective aldolization of a meso dialdehyde as a key step. The inherent chirality present in bornanesultam 4 was thus transmitted to the five stereocenters spanning C-4-C-8 in key intermediate 8. In addition, denticulatin B (1b) was obtained from the common intermediate 8 en route to denticulatin A in 10 steps and 35% overall yield. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0040-4020(97)00617-0
• 作为产物：
  描述：

  二叔丁基硅基双(三氟甲烷磺酸) 在 2,6-二甲基吡啶 、 草酰氯 、 三乙基硼氢化锂 、 二甲基亚砜 、 三乙胺 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 为溶剂， 反应 21.08h， 生成 (S)-2-[(4R,5S,6S)-2,2-Di-tert-butyl-6-((S)-1-[1,3]dithiolan-2-yl-ethyl)-5-methyl-[1,3,2]dioxasilinan-4-yl]-pentan-3-one
  参考文献：
  名称：

  Enantioselective total synthesis of (−)-denticulatins A and B using a novel group-selective aldolization of a meso dialdehyde as a key step

  摘要：

  The diastereoselective synthesis of (-)-denticulatin A (1a) was achieved for the first time in 9 steps (41% yield) based on a novel group-selective aldolization of a meso dialdehyde as a key step. The inherent chirality present in bornanesultam 4 was thus transmitted to the five stereocenters spanning C-4-C-8 in key intermediate 8. In addition, denticulatin B (1b) was obtained from the common intermediate 8 en route to denticulatin A in 10 steps and 35% overall yield. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0040-4020(97)00617-0

文献信息

• Non-destructive Removal of the Bornanesultam Auxiliary in ?-SubstitutedN-Acylbornane-10,2-sultanis under Mild Conditions: An efficient synthesis of enantiomerically pure ketones and aldehydes
  作者：Wolfgang Oppolzer、Christophe Darcel、Patrick Rochet、Stephane Rosset、Jef De Brabander

  DOI：10.1002/hlca.19970800502

  日期：1997.8.11

  two-step procedure involving a known mercaptolysis reaction followed by an [Fe(acac)3]-mediated coupling of the resulting S-benzyl thioesters with Grignard reagents. Furthermore, enantiomerically pure aldehydes 23 can be obtained from α-substituted N-acylbornane-10,2-sultams 6via a one-step reduction with (i-Bu)2AIH. No epimerization at the α-chiral center is observed during the cleavage reaction whereby

  α-替补Ñ -acylbornane-10，2 -sultams 6,9，和10可以被转换成纯对映异构体酮5. 13，和14，分别经由涉及已知mercaptolysis反应，随后通过的[Fe两步过程（acac）3 ]-介导的所得S-苄基硫酯与格氏试剂的偶联。此外，对映体纯的醛23可以通过（i-Bu）2的一步还原从α-取代的N-酰基冰片烷-10,2-杜鹃花6获得。AIH。在切割反应过程中未观察到在α-手性中心的差向异构体，由此回收了手性助剂，硼烷-10，2-sultam 1或ent - 1。通过使用这种方法，可以制备几种天然产物或其前体。
• Asymmetric synthesis of (−)-denticulatins A and B via group-selective aldolization of a meso dialdehyde with a chiral N-propionylsultam
  作者：Wolfgang Oppolzer、Jef De Brabander、Eric Walther、Gérald Bernardinelli

  DOI：10.1016/0040-4039(95)00787-d

  日期：1995.6

  Aldolization of meso dialdehyde 3 with a borylenolate obtained from chiral N-propionylsultam 4 yields efficiently lactols 5 with simultaneous generation of five stereogenic centers.Dithioketalization/O-desilylation of 5 affords acyclic diol 9 which is converted into the marine polypropionates 1a and 1bvia the asymmetric alkylation of N-propionyltoluenesultam 11 and the aldol coupling 10 + 15 → 16.

  的醛醇缩合内消旋二醛3与手性获得的borylenolate Ñ -propionylsultam 4倍的产率有效地乳醇5与同时产生的5立构centers.Dithioketalization / ø -desilylation的5得到无环二醇9被转换为海洋聚丙1A和1B通过在N-丙酰基甲苯磺酰胺11的不对称烷基化和羟醛偶联10 + 15→16。
• Enantioselective total synthesis of (−)-denticulatins A and B using a novel group-selective aldolization of a meso dialdehyde as a key step
  作者：Jef De Brabander、Wolfgang Oppolzer

  DOI：10.1016/s0040-4020(97)00617-0

  日期：1997.7

  The diastereoselective synthesis of (-)-denticulatin A (1a) was achieved for the first time in 9 steps (41% yield) based on a novel group-selective aldolization of a meso dialdehyde as a key step. The inherent chirality present in bornanesultam 4 was thus transmitted to the five stereocenters spanning C-4-C-8 in key intermediate 8. In addition, denticulatin B (1b) was obtained from the common intermediate 8 en route to denticulatin A in 10 steps and 35% overall yield. (C) 1997 Elsevier Science Ltd.