4-氟甲基-5H-呋喃-2-酮 | 916069-77-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氢呋喃
• 中文名称: 4-氟甲基-5H-呋喃-2-酮
• 英文名称: 4-fluoromethyl-5H-furan-2-one
• 英文别名: 3-(fluoromethyl)-2H-furan-5-one
• CAS: 916069-77-7
• 化学式: C₅H₅FO₂
• 分子量: 116.092
• InChiKey: FRTULIFOIVLWAE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.1
• 重原子数：
  8
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4-氟甲基-5H-呋喃-2-酮 在 RuCl₂((R)-3,5-Xyl-MeOBIPHEP)(S-DAIPEN) 氢气 、 sodium t-butanolate 作用下， 以 异丙醇 为溶剂， 40.0 ℃ 、1.0 MPa 条件下， 反应 18.0h， 以81.2%的产率得到
  参考文献：
  名称：

  Process for the preparation of (S)-4-fluoromethyl-dihydro-furan-2-one useful in the preparation of the DPP-IV inhibitor (S)-1 ((2S,3S,11bS)-2-amino-9,10-dimethoxy-1,3,4,6,7, 11b-hexahydro-2h-pyrido[2,1-a] isoquinolin-3-yl)-4-fluoromethyl-pyrrolidin-2-one

  摘要：

  本发明涉及制备新中间体(S)-4-氟甲基-二氢呋喃-2-酮的方法，其化学式为：并利用该中间体制备式为：的吡啶[2,1-a]异喹啉衍生物，这些衍生物对于治疗和/或预防与DPP IV相关的疾病是有用的。

  公开号：

  US20060270853A1
• 作为产物：
  描述：

  4-hydroxymethyl-5H-furan-2-one 在 N,N-二异丙基乙胺 、 全氟丁基磺酰氟 作用下， 以 乙酸乙酯 为溶剂， 反应 3.5h， 以43%的产率得到4-氟甲基-5H-呋喃-2-酮
  参考文献：
  名称：

  Process for the preparation of (S)-4-fluoromethyl-dihydro-furan-2-one useful in the preparation of the DPP-IV inhibitor (S)-1 ((2S,3S,11bS)-2-amino-9,10-dimethoxy-1,3,4,6,7, 11b-hexahydro-2h-pyrido[2,1-a] isoquinolin-3-yl)-4-fluoromethyl-pyrrolidin-2-one

  摘要：

  本发明涉及制备新中间体(S)-4-氟甲基-二氢呋喃-2-酮的方法，其化学式为：并利用该中间体制备式为：的吡啶[2,1-a]异喹啉衍生物，这些衍生物对于治疗和/或预防与DPP IV相关的疾病是有用的。

  公开号：

  US20060270853A1

文献信息

• PROCESS FOR THE PREPARATION OF PYRIDO [ 2-1-A] ISOQUINOLINE DERIVATIVES BY CATALYTIC ASYMMETRIC HYDROGENATION OF AN ENAMINE
  申请人：Abrecht Stefan

  公开号：US20080076925A1

  公开（公告）日：2008-03-27

  The invention relates to a process for the preparation of pyrido[2,1- a ] isoquinoline derivatives of the formula wherein R 2 , R 3 and R 4 are as defined in the specification, comprising the steps of a) catalytic asymmetric hydrogenation of an enamine of the formula wherein R 1 is lower alkyl, in the presence of a transition metal catalyst containing a chiral diphosphane ligand, b) introduction of an amino protecting group Prot and c) amidation of the ester to form an amide of formula wherein R 2 , R 3 , R 4 and Prot are as defined in the specification.

  本发明涉及一种制备式为的吡啶并[2,1-a]异喹啉衍生物的方法，其中R2、R3和R4如规范中所定义，包括以下步骤：a）在手性二膦配体存在下，对式为的烯胺进行催化不对称氢化，其中R1为低碳基；b）引入氨基保护基Prot；c）酰胺化酯，形成式为的酰胺，其中R2、R3、R4和Prot如规范中所定义。
• PROCESS FOR THE PREPARATION OF PYRIDO [2,1-a] ISOQUINOLINE DERIVATIVES COMPRISING OPTICAL RESOLUTION OF AN ENAMINE
  申请人：Abrecht Stefan

  公开号：US20080071087A1

  公开（公告）日：2008-03-20

  This invention relates to a process for the preparation of pyrido[2,1-a]isoquinoline derivatives of the formula wherein R 1 , R 2 , R 3 and R 4 are defined in the specification, comprising the optical resolution of an enamine of the formula wherein R 1 is lower alkyl, in the presence of an optical active resolving agent to form an (S)-enamine salt of the formula wherein RCO 2 − is the conjugate base of the resolving agent.

  本发明涉及一种制备式为pyrido[2,1-a]异喹啉衍生物的方法，其中R1、R2、R3和R4在规范中有定义，包括在具有手性分离剂的存在下，光学分辨式为R1为低级烷基的恩酰胺，形成式为RCO2-的手性(S)-恩酰胺盐。
• Process for the preparation of (S)-4-fluoromethyl-dihydro-furan-2-one useful in the preparation of the DPP-IV inhibitor (S)-1 ((2S,3S,11bS)-2-amino-9,10-dimethoxy-1,3,4,6,7, 11b-hexahydro-2h-pyrido[2,1-a] isoquinolin-3-yl)-4-fluoromethyl-pyrrolidin-2-one
  申请人：Abrecht Stefan

  公开号：US20060270853A1

  公开（公告）日：2006-11-30

  This invention relates to a process of the preparation of the novel intermediate (S)-4-fluoromethyl-dihydro-furan-2-one of the formula and with its use for the manufacture of pyrido[2,1-a]isoquinoline derivatives of the formula which are useful for the treatment and/or prophylaxis of diseases which are associated with DPP IV.

  本发明涉及制备新中间体(S)-4-氟甲基-二氢呋喃-2-酮的方法，其化学式为：并利用该中间体制备式为：的吡啶[2,1-a]异喹啉衍生物，这些衍生物对于治疗和/或预防与DPP IV相关的疾病是有用的。
• Process for the preparation of (S)-4-fluoromethyl-dihydro-furan-2-one useful in the preparation of the DPP-IV inhibitor (S)-1 ((2S,3S,11bS)-2-amino-9,10-dimethoxy-1,3,4,6,7, 11b-hexahydro-2H-pyrido[2,1-a] isoquinolin-3-yl)-4-fluoromethyl-pyrrolidin-2-one
  申请人：Hoffman-La Roche Inc.

  公开号：US07619101B2

  公开（公告）日：2009-11-17

  This invention relates to a process of the preparation of the novel intermediate (S)-4-fluoromethyl-dihydro-furan-2-one of the formula and with its use for the manufacture of pyrido[2,1-a]isoquinoline derivatives of the formula which are useful for the treatment and/or prophylaxis of diseases which are associated with DPP IV.

  本发明涉及一种制备新型中间体(S)-4-氟甲基二氢呋喃-2-酮的方法，并利用其制造式为的吡啶并[2,1-a]异喹啉衍生物，用于治疗和/或预防与DPP IV相关的疾病。
• Development of a Scalable Synthesis of (<i>S</i>)-3-Fluoromethyl-γ-butyrolactone, Building Block for Carmegliptin’s Lactam Moiety
  作者：Jean-Michel Adam、Joseph Foricher、Steven Hanlon、Bruno Lohri、Gérard Moine、Rudolf Schmid、Helmut Stahr、Martin Weber、Beat Wirz、Ulrich Zutter

  DOI：10.1021/op200019k

  日期：2011.5.20

  Several new routes are reported for the synthesis of (S)-3-fluoromethyl-gamma-butyrolactone. An asymmetric hydrogenation-based synthesis was chosen as the enabling route to produce the lactone on a 10-kg scale. A superior stereoselective route starting from (S)-tert-butyl glycidyl ether which afforded the desired lactone in three steps with similar to 50% overall yield was finally selected for further development and production.