(1S,5R,6S,7S)-7-endo-Chloro-6-endo-(methoxymethoxy)-2,8-dioxabicyclo<3.2.1>heptan-3-one | 170873-12-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (1S,5R,6S,7S)-7-endo-Chloro-6-endo-(methoxymethoxy)-2,8-dioxabicyclo<3.2.1>heptan-3-one
• 英文别名: (1S,5R,6S,7S)-7-chloro-6-(methoxymethoxy)-2,8-dioxabicyclo[3.2.1]octan-3-one
• CAS: 170873-12-8
• 化学式: C₈H₁₁ClO₅
• 分子量: 222.625
• InChiKey: WLFMNEQHRSLCBZ-YTQLPXDHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  54
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (1S,5R,6S,7S)-7-endo-Chloro-6-endo-(methoxymethoxy)-2,8-dioxabicyclo<3.2.1>heptan-3-one 在 吡啶 、 sodium tetrahydroborate 、 正丁基锂 、 三丁基膦 、 sodium methylate 、 二异丁基氢化铝 、 cesium fluoride 、 六甲基二硅氮烷 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 43.84h， 生成 10,11-Anhydro-5,7-dideoxy-1,2-O-isopropylidene-9-O-(methoxymethyl)-7-C-<<(2-nitrophenyl)seleno>methyl>-β-L-ido-L-ido-undecofuranose
  参考文献：
  名称：

  Synthesis of Undeculofuranoside Derivatives of the Herbicidins and of Analogs

  摘要：

  The condensation of 3-O-(tert-butyldimethylsilyl)-5-deoxy-1,2-O-isopropylidene-alpha-D-xylo-hexodialdo-1,4-furanose (obtained in six steps (35%) from D-glucurono-6,3-lactone) with the lithium enolate of (+/-)6-endo-chloro-5-endo-(methoxymethoxy)-7-oxabicyclo[2.2.1]heptan-2-one (derived in six steps (25%) from the Diels-Alder adduct of furan to 1-cyanovinyl acetate) was highly exo face selective giving two major aldols that were separated readily. One of them was converted to 6,10-anhydro-5-deoxy-1,2-O-isopropylidene-9-O-(methoymethyl)-alpha-D-arabino-L-ido-7-undeculofuranose-(1,4)-pyranose-(7,3), a semiprotected form of the long-chain carbohydrate moiety of the herbicidins. The synthesis implies the acid-promoted isomerization of 10,11-anhydro-5,7-dideoxy-1,2-O-isopropylidene-9-O-(methoxymethyl)-7-C-[(2-nitrophenyl)selenomethyl]-beta-L-ido-L-ido-undecofuranose.

  DOI：

  10.1021/jo00123a021
• 作为产物：
  描述：

  (1S,4R,6S)-6-Chloro-5-methoxymethoxy-7-oxa-bicyclo[2.2.1]heptan-2-one 在 碳酸氢钠 、 间氯过氧苯甲酸 作用下， 以 二氯甲烷 为溶剂， 反应 18.0h， 生成 (1S,5R,6S,7S)-7-endo-Chloro-6-endo-(methoxymethoxy)-2,8-dioxabicyclo<3.2.1>heptan-3-one 、 (1S,5R,6R,7S)-7-endo-Chloro-6-exo-(methoxymethoxy)-2,8-dioxabicyclo<3.2.1>heptan-3-one
  参考文献：
  名称：

  Synthesis of Undeculofuranoside Derivatives of the Herbicidins and of Analogs

  摘要：

  The condensation of 3-O-(tert-butyldimethylsilyl)-5-deoxy-1,2-O-isopropylidene-alpha-D-xylo-hexodialdo-1,4-furanose (obtained in six steps (35%) from D-glucurono-6,3-lactone) with the lithium enolate of (+/-)6-endo-chloro-5-endo-(methoxymethoxy)-7-oxabicyclo[2.2.1]heptan-2-one (derived in six steps (25%) from the Diels-Alder adduct of furan to 1-cyanovinyl acetate) was highly exo face selective giving two major aldols that were separated readily. One of them was converted to 6,10-anhydro-5-deoxy-1,2-O-isopropylidene-9-O-(methoymethyl)-alpha-D-arabino-L-ido-7-undeculofuranose-(1,4)-pyranose-(7,3), a semiprotected form of the long-chain carbohydrate moiety of the herbicidins. The synthesis implies the acid-promoted isomerization of 10,11-anhydro-5,7-dideoxy-1,2-O-isopropylidene-9-O-(methoxymethyl)-7-C-[(2-nitrophenyl)selenomethyl]-beta-L-ido-L-ido-undecofuranose.

  DOI：

  10.1021/jo00123a021

文献信息

• Synthesis of Undeculofuranoside Derivatives of the Herbicidins and of Analogs
  作者：Fabienne Emery、Pierre Vogel

  DOI：10.1021/jo00123a021

  日期：1995.9

  The condensation of 3-O-(tert-butyldimethylsilyl)-5-deoxy-1,2-O-isopropylidene-alpha-D-xylo-hexodialdo-1,4-furanose (obtained in six steps (35%) from D-glucurono-6,3-lactone) with the lithium enolate of (+/-)6-endo-chloro-5-endo-(methoxymethoxy)-7-oxabicyclo[2.2.1]heptan-2-one (derived in six steps (25%) from the Diels-Alder adduct of furan to 1-cyanovinyl acetate) was highly exo face selective giving two major aldols that were separated readily. One of them was converted to 6,10-anhydro-5-deoxy-1,2-O-isopropylidene-9-O-(methoymethyl)-alpha-D-arabino-L-ido-7-undeculofuranose-(1,4)-pyranose-(7,3), a semiprotected form of the long-chain carbohydrate moiety of the herbicidins. The synthesis implies the acid-promoted isomerization of 10,11-anhydro-5,7-dideoxy-1,2-O-isopropylidene-9-O-(methoxymethyl)-7-C-[(2-nitrophenyl)selenomethyl]-beta-L-ido-L-ido-undecofuranose.