3(S)-(phenylsulfonyl)cyclopent-1-ene | 171774-71-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 3(S)-(phenylsulfonyl)cyclopent-1-ene
• 英文别名: (S)-3-(phenylsulfonyl)cyclopent-1-ene；[(1S)-cyclopent-2-en-1-yl]sulfonylbenzene
• CAS: 171774-71-3
• 化学式: C₁₁H₁₂O₂S
• 分子量: 208.281
• InChiKey: DQMDJTKWJPKCJC-LLVKDONJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  42.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3(S)-(phenylsulfonyl)cyclopent-1-ene 在 吡啶 、 4-二甲氨基吡啶 、 sodium amalgam 、 间氯过氧苯甲酸 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 44.0h， 生成 (S)-(cyclopent-2-en-1-yl)acetate
  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-(1-环戊烯基)乙酸酯 、 sodium benzenesulfonate 在 bis(η3-allyl-μ-chloropalladium(II)) 、 1,2-bis[N-(2'-(diphenylphosphino)benzoyl)]-1(S),2(R)-diaminocyclohexane 、 四己基溴化铵 作用下， 生成 3(S)-(phenylsulfonyl)cyclopent-1-ene
  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

• π-Allylic Sulfonylation in Water with Amphiphilic Resin-Supported Palladium-Phosphine Complexes
  作者：Yasuhiro Uozumi、Toshimasa Suzuka

  DOI：10.1055/s-2008-1067096

  日期：——

  with an amphiphilic polystyrene-poly(ethylene glycol) (PS-PEG) resin-supported phosphine-palladium complex in water as a single reaction medium under heterogeneous conditions to give allyl sulfones in good to high yields. Catalytic asymmetric allylic substitution of cycloalkenyl esters also took place in water using a PS-PEG resin-supported chiral imidazo-indolephosphine-palladium complex to give cycloalkenyl

  用两亲性聚苯乙烯-聚（乙二醇）（PS-PEG）树脂负载的膦-钯配合物在水中作为单一反应介质在非均相条件下进行烯丙基酯与芳基亚磺酸钠的 π-烯丙基取代，得到良好的烯丙基砜到高产。环烯基酯的催化不对称烯丙基取代也在水中使用 PS-PEG 树脂负载的手性咪唑-吲哚膦-钯络合物进行，得到高达 81% ee 的环烯基砜。