7(S)-(tert-butyldimethylsiloxy)-1,4,5,6,7,7a(S)-hexahydroinden-2-one | 171868-75-0

• 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: 7(S)-(tert-butyldimethylsiloxy)-1,4,5,6,7,7a(S)-hexahydroinden-2-one
• 英文别名: (7S,7aS)-7-[tert-butyl(dimethyl)silyl]oxy-1,4,5,6,7,7a-hexahydroinden-2-one
• CAS: 171868-75-0
• 化学式: C₁₅H₂₆O₂Si
• 分子量: 266.456
• InChiKey: OHQJZOVVMDNGKV-KBPBESRZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.08
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.8
• 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：

  三甲基碘化锍 、 7(S)-(tert-butyldimethylsiloxy)-1,4,5,6,7,7a(S)-hexahydroinden-2-one 在 sodium hydride 作用下， 生成 7(S)-(tert-butyldimethylsiloxy)-3(R),3a(R)-methano-7a(S)-octahydroinden-2-one
  参考文献：
  名称：

  Asymmetric synthesis of allylic sulfones useful as asymmetric building blocks.

  摘要：

  Construction of sulfones in enantiomerically pure form provides a great opportunity to enhance their value as synthetic building blocks. Allylic sulfones, in particular, have great flexibility derived from sulfone-controlled additions to the double bond. Two strategies have been developed based upon the ability to effect asymmetric allylic alkylations with palladium employing ligands derived from c(2) symmetric diamines and 2-(diphenylphosphino)benzoic acid. Desymmetrization of meso-2-ene-1,4-diol diesters does not involve the nucleophile in the enantiodiscriminating step and thus should, a priori, not depend upon the nature of the nucleophile. Indeed, such desymmetrization of such a diester in the presence of a sulfinate anion gave excellent enantioselectivity. On the other hand, conversion of both enantiomeric allylic esters to enantiomerically pure allylic sulfones requires sodium benzenesulfinate to participate in the enantiodiscriminating step. Five-, six-, and seven-membered substrates all gave excellent enantioselectivities. A catalytic phase transfer system proved most efficacious on larger scales. propagating the asymmetry requires diastereoselective functionalization of the double bond. While epoxidation proved excellent for the five-membered ring case and satisfactory for the six-membered ring case, it was unsatisfactory in the seven-membered ring case. Osmium tetroxide-catalyzed cis-dihydroxylation gave excellent diastereoselectivities in the six- and seven-membered ring cases. Reductive cleavages produced enantiomerically pure allylic alcohols. Base-catalyzed elimination generated enantiomerically pure gamma-hydroxy-alpha,beta-unsaturated sulfones from which further stereogenic centers were produced by diastereoselective conjugate additions. Notably, an asymmetric cyclopentenone annulation using palladium-catalyzed cycloadditions now derives from racemic allyl alcohols.

  DOI：

  10.1021/ja00143a007
• 作为产物：
  描述：

  2(S)-hydroxy-3(S)-(phenylsulfonyl)cyclohexan-1(S)-ol 在 吡啶 、 三异丙基亚磷酸酯 、 palladium diacetate 、 臭氧 、 三乙胺 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 15.0h， 生成 7(S)-(tert-butyldimethylsiloxy)-1,4,5,6,7,7a(S)-hexahydroinden-2-one
  参考文献：
  名称：

  Asymmetric synthesis of allylic sulfones useful as asymmetric building blocks.

  摘要：

  Construction of sulfones in enantiomerically pure form provides a great opportunity to enhance their value as synthetic building blocks. Allylic sulfones, in particular, have great flexibility derived from sulfone-controlled additions to the double bond. Two strategies have been developed based upon the ability to effect asymmetric allylic alkylations with palladium employing ligands derived from c(2) symmetric diamines and 2-(diphenylphosphino)benzoic acid. Desymmetrization of meso-2-ene-1,4-diol diesters does not involve the nucleophile in the enantiodiscriminating step and thus should, a priori, not depend upon the nature of the nucleophile. Indeed, such desymmetrization of such a diester in the presence of a sulfinate anion gave excellent enantioselectivity. On the other hand, conversion of both enantiomeric allylic esters to enantiomerically pure allylic sulfones requires sodium benzenesulfinate to participate in the enantiodiscriminating step. Five-, six-, and seven-membered substrates all gave excellent enantioselectivities. A catalytic phase transfer system proved most efficacious on larger scales. propagating the asymmetry requires diastereoselective functionalization of the double bond. While epoxidation proved excellent for the five-membered ring case and satisfactory for the six-membered ring case, it was unsatisfactory in the seven-membered ring case. Osmium tetroxide-catalyzed cis-dihydroxylation gave excellent diastereoselectivities in the six- and seven-membered ring cases. Reductive cleavages produced enantiomerically pure allylic alcohols. Base-catalyzed elimination generated enantiomerically pure gamma-hydroxy-alpha,beta-unsaturated sulfones from which further stereogenic centers were produced by diastereoselective conjugate additions. Notably, an asymmetric cyclopentenone annulation using palladium-catalyzed cycloadditions now derives from racemic allyl alcohols.

  DOI：

  10.1021/ja00143a007

文献信息

• Asymmetric synthesis of allylic sulfones useful as asymmetric building blocks.
  作者：Barry M. Trost、Michael G. Organ、George A. O'Doherty

  DOI：10.1021/ja00143a007

  日期：1995.9

  Construction of sulfones in enantiomerically pure form provides a great opportunity to enhance their value as synthetic building blocks. Allylic sulfones, in particular, have great flexibility derived from sulfone-controlled additions to the double bond. Two strategies have been developed based upon the ability to effect asymmetric allylic alkylations with palladium employing ligands derived from c(2) symmetric diamines and 2-(diphenylphosphino)benzoic acid. Desymmetrization of meso-2-ene-1,4-diol diesters does not involve the nucleophile in the enantiodiscriminating step and thus should, a priori, not depend upon the nature of the nucleophile. Indeed, such desymmetrization of such a diester in the presence of a sulfinate anion gave excellent enantioselectivity. On the other hand, conversion of both enantiomeric allylic esters to enantiomerically pure allylic sulfones requires sodium benzenesulfinate to participate in the enantiodiscriminating step. Five-, six-, and seven-membered substrates all gave excellent enantioselectivities. A catalytic phase transfer system proved most efficacious on larger scales. propagating the asymmetry requires diastereoselective functionalization of the double bond. While epoxidation proved excellent for the five-membered ring case and satisfactory for the six-membered ring case, it was unsatisfactory in the seven-membered ring case. Osmium tetroxide-catalyzed cis-dihydroxylation gave excellent diastereoselectivities in the six- and seven-membered ring cases. Reductive cleavages produced enantiomerically pure allylic alcohols. Base-catalyzed elimination generated enantiomerically pure gamma-hydroxy-alpha,beta-unsaturated sulfones from which further stereogenic centers were produced by diastereoselective conjugate additions. Notably, an asymmetric cyclopentenone annulation using palladium-catalyzed cycloadditions now derives from racemic allyl alcohols.