2-Iodoxybenzoic acid → (1S,2S,3S,4R,5S)-2,3,4-tribenzyloxy-5-[4-chloro-3-[[4-(2,2,2-trifluoro ethoxy)phenyl]methyl]phenyl]-6,8-dioxabicyclo[3.2.1]octane-1-carbaldehyde

HRID 1055554ノート

反応式

HRID 1055554 の反応式
[CH2:1]([O:8][C@H:9]1[C@H:15]([O:16][CH2:17][C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)[C@@H:14]([O:24][CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[C@:13]2([C:33]3[CH:38]=[CH:37][C:36]([Cl:39])=[C:35]([CH2:40][C:41]4[CH:46]=[CH:45][C:44]([O:47][CH2:48][C:49]([F:52])([F:51])[F:50])=[CH:43][CH:42]=4)[CH:34]=3)[O:32][C@@:10]1([CH2:53][OH:54])[CH2:11][O:12]2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.I(C1C=CC=CC=1C(O)=O)(=O)=O>ClCCl>[CH2:1]([O:8][C@H:9]1[C@H:15]([O:16][CH2:17][C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)[C@@H:14]([O:24][CH2:25][C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[C@:13]2([C:33]3[CH:38]=[CH:37][C:36]([Cl:39])=[C:35]([CH2:40][C:41]4[CH:42]=[CH:43][C:44]([O:47][CH2:48][C:49]([F:52])([F:51])[F:50])=[CH:45][CH:46]=4)[CH:34]=3)[O:32][C@@:10]1([CH:53]=[O:54])[CH2:11][O:12]2)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

4

反応物 2

HCID 1087942-Iodoxybenzoic acidHCID 86685153[(1S,2S,3S,4R,5S)-2,3,4-tribenzyloxy-5-[4-chloro-3-[[4-(2,2,2-trifluoroethoxy)phenyl]methyl]phenyl]-6,8-dioxabicyclo[3.2.1]octan-1-yl]methanol

生成物 1

HCID 118377846(1S,2S,3S,4R,5S)-2,3,4-tribenzyloxy-5-[4-chloro-3-[[4-(2,2,2-trifluoro ethoxy)phenyl]methyl]phenyl]-6,8-dioxabicyclo[3.2.1]octane-1-carbaldehyde収率 80.7%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a solution of [(1S,2S,3S,4R,5S)-2,3,4-tribenzyloxy-5-[4-chloro-3-[[4-(2,2,2-trifluoroethoxyl) phenyl]methyl]phenyl]-6,8-dioxabicyclo[3.2.1]octan-1-yl]methanol 171 (2.3 g, 3.02 mmol) in dichloromethane (100 mL) was added 2-iodoxybenzoic acid (1.70 g, 6.04 mmol) at room temperature. The mixture was refluxed for 20 hours, then cooled to room temperature and filtered. The filtrate was washed with saturated aqueous sodium chloride (50 mL) and concentrated in vacuo. The residue was purified by silica gel chromatography eluted with PE/EtOAc(v/v)=10/1 to give the title compound 17m as pale yellow viscous oil (1.85 g, 80.4%, HPLC: 76.76%). This material was not further purified.

後処理

  1. temperatureThe mixture was refluxed for 20 hours
  2. filtrationfiltered
  3. washThe filtrate was washed with saturated aqueous sodium chloride (50 mL)
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by silica gel chromatography
  6. washeluted with PE/EtOAc(v/v)=10/1

出典と根拠

ORDレコード
ord-ca4199fadaac4bb1bc95c1e151e2cfab
出典データセット
uspto-grants-2016_07
特許番号
US09394329B2

反応ノート

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