(2R,3S,4R)-3-benzyloxy-2-benzyloxymethyl-4-(phenylselenyl)tetrahydrofuran | 334784-85-9

• 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: (2R,3S,4R)-3-benzyloxy-2-benzyloxymethyl-4-(phenylselenyl)tetrahydrofuran
• 英文别名: (2R,3S,4R)-3-phenylmethoxy-2-(phenylmethoxymethyl)-4-phenylselanyloxolane
• CAS: 334784-85-9
• 化学式: C₂₅H₂₆O₃Se
• 分子量: 453.44
• InChiKey: DROVIUMFQQLQAX-SDHSZQHLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.01
• 重原子数：
  29
• 可旋转键数：
  9
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.28
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (2R,3S,4R)-3-benzyloxy-2-benzyloxymethyl-4-(phenylselenyl)tetrahydrofuran 在 titanium(IV) isopropylate 、 叔丁基过氧化氢 、 N,N-二异丙基乙胺 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 48.0h， 以74%的产率得到1,4-anhydro-3,5-di-O-benzyl-2-deoxy-D-threo-pent-1-enitol
  参考文献：
  名称：

  Synthesis of erythro and threo furanoid glycals from 1- and 2-phenylselenenyl–carbohydrate derivatives

  摘要：

  Differently protected erythro and threo furanoid glycals were synthesized by selenoxide elimination when phenyl 1-selenoglycosides were treated in oxidizing conditions ((BuOOH)-Bu-i, Ti((OPr)-Pr-i)(4), (Et2PrN)-Pr-i). The phenyl 1-selenoglycosides were obtained from methyl 2-deoxy-D-erythro-pentofuranoside by protection of the primary hydroxyl or both hydroxyls and further reaction with PhSeH in the presence of BF3. Et2O. Erythro and threo furanoid glycals were also prepared by treating 2-deoxy-2-phenylselenenyl-1,4-anhydrocyclitols under similar conditions. The 2-deoxy-2-phenylselenenyl-1,4-anhydrocyclitols were obtained from 4-pentene-1,2,3-triols by a 5-endo selenium electrophilic induced cyclization. (C) 2001 Published by Elsevier Science Ltd.

  DOI：

  10.1016/s0008-6215(01)00256-7
• 作为产物：
  描述：

  (4R)-1-(2,2-dimethyl-[1,3]dioxolan-4-yl)allyl alcohol 在 4 A molecular sieve 、 Dowex 50 W 、 H⁺ acid resin 、 camphor-10-sulfonic acid 、 sodium hydride 、 二正丁基氧化锡 作用下， 以 四氢呋喃 、 甲醇 、 1,2-二氯乙烷 、 甲苯 为溶剂， 反应 98.33h， 生成 (2R,3S,4R)-3-benzyloxy-2-benzyloxymethyl-4-(phenylselenyl)tetrahydrofuran
  参考文献：
  名称：

  通过 4-Pentene-1,2,3-triols 的亲电诱导环化合成取代四氢呋喃 - 亲电控制的 5-exo 与 5-endo 环化的例子

  摘要：

  从甘油醛中获得不同保护的 4-戊烯-1,2,3-三醇 5-8，并进行碘基亲电试剂诱导环化，得到四氢呋喃衍生物 10 和 18，具有高化学选择性、区域选择性和立体选择性，通过5-exo 环化过程。然而，当亲电硒试剂用类似的烯烃三醇 5、7 和 8 处理时，产物取决于伯羟基部分的保护基团。因此，虽然在伯羟基处未保护的化合物 5a 和 5b 通过 5-外环化过程分别得到化合物 26 和 27、以及 32 和 33，但在伯羟基处保护的化合物 7 和 8 得到5-内环化产物 22-25 和 28-31 收率良好。4-pentene-1,2 的亲电诱导环化，通过使用碘或当伯羟基未保护时，使用硒，可以将 3-三醇生成四氢呋喃衍生物用于 5-exo 过程。当伯羟基受到保护时，硒的使用会导致 5-内环化。

  DOI：

  10.1002/1099-0690(200102)2001:3<507::aid-ejoc507>3.0.co;2-r

文献信息

• Synthesis of erythro and threo furanoid glycals using 5-endo-trig selenoetherification as key step
  作者：Fernando Bravo、Mohamed Kassou、Sergio Castillón

  DOI：10.1016/s0040-4039(98)02561-1

  日期：1999.2

  Differently protected erythro and three furanoid glycals were synthesised from 4-pentene-1,2,3-triol, through selenium induced 5-endo-trig cyclization and selenoxide elimination. (C) 1999 Elsevier Science Ltd. All rights reserved.
• Synthesis of erythro and threo furanoid glycals from 1- and 2-phenylselenenyl–carbohydrate derivatives
  作者：Fernando Bravo、Mohamed Kassou、Yolanda Dı́az、Sergio Castillón

  DOI：10.1016/s0008-6215(01)00256-7

  日期：2001.11

  Differently protected erythro and threo furanoid glycals were synthesized by selenoxide elimination when phenyl 1-selenoglycosides were treated in oxidizing conditions ((BuOOH)-Bu-i, Ti((OPr)-Pr-i)(4), (Et2PrN)-Pr-i). The phenyl 1-selenoglycosides were obtained from methyl 2-deoxy-D-erythro-pentofuranoside by protection of the primary hydroxyl or both hydroxyls and further reaction with PhSeH in the presence of BF3. Et2O. Erythro and threo furanoid glycals were also prepared by treating 2-deoxy-2-phenylselenenyl-1,4-anhydrocyclitols under similar conditions. The 2-deoxy-2-phenylselenenyl-1,4-anhydrocyclitols were obtained from 4-pentene-1,2,3-triols by a 5-endo selenium electrophilic induced cyclization. (C) 2001 Published by Elsevier Science Ltd.
• Synthesis of Substituted Tetrahydrofuran by Electrophile-Induced Cyclization of 4-Pentene-1,2,3-triols − An Example of 5-exo versus 5-endo Cyclization Governed by the Electrophile
  作者：Fernando Bravo、Sergio Castillón

  DOI：10.1002/1099-0690(200102)2001:3<507::aid-ejoc507>3.0.co;2-r

  日期：2001.2

  hydroxy group, give compounds 26 and 27, and 32 and 33, respectively, through a 5-exo cyclization process, compounds 7 and 8, protected at the primary hydroxy group, give the 5-endo cyclization products 22−25 and 28−31 in good yields. The electrophile-induced cyclization of 4-pentene-1,2,3-triols to give tetrahydrofuran derivatives can be directed towards a 5-exo process by the use of iodine or, when the

  从甘油醛中获得不同保护的 4-戊烯-1,2,3-三醇 5-8，并进行碘基亲电试剂诱导环化，得到四氢呋喃衍生物 10 和 18，具有高化学选择性、区域选择性和立体选择性，通过5-exo 环化过程。然而，当亲电硒试剂用类似的烯烃三醇 5、7 和 8 处理时，产物取决于伯羟基部分的保护基团。因此，虽然在伯羟基处未保护的化合物 5a 和 5b 通过 5-外环化过程分别得到化合物 26 和 27、以及 32 和 33，但在伯羟基处保护的化合物 7 和 8 得到5-内环化产物 22-25 和 28-31 收率良好。4-pentene-1,2 的亲电诱导环化，通过使用碘或当伯羟基未保护时，使用硒，可以将 3-三醇生成四氢呋喃衍生物用于 5-exo 过程。当伯羟基受到保护时，硒的使用会导致 5-内环化。