5-Chloro-3,4-diphenyl-1,2-oxazole → HCID 53801427、化合物

HRID 343084ノート

反応式

HRID 343084 の反応式
Cl[C:2]1[O:6][N:5]=[C:4]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[C:3]=1[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.[CH3:19][S-:20].[Na+]>CS(C)=O.O>[CH3:19][S:20][C:2]1[O:6][N:5]=[C:4]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[C:3]=1[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1

参加物

5

反応物 2

HCID 2857785-Chloro-3,4-diphenyl-1,2-oxazoleHCID 4378561Sodium methanethiolate

生成物 1

HCID 53801427HCID 53801427、化合物収率 84%

試薬・触媒・溶媒 2

HCID 679Dimethyl Sulfoxide溶媒HCID 962Water溶媒

実験手順

To a stirred solution of 5-chloro-3,4-diphenylisoxazole (Step 1) (1.75 g, 6.84 mmol) in DMSO (30 mL) was added sodium thiomethoxide (0.58 g, 8.21 mmol). After stirring for 30 hours at room temperature, the reaction was diluted with water and extracted twice with Et2O . The combined ethereal phases were washed with NaHCO3 saturated solution, KHSO4 solution (0.25N), and brine, dried over MgSO4, filtered and concentrated in vacuo yielding 5-methylthio-3,4-diphenylisoxazole (1.53 g, 84%): mp 83°-86° C. 1H NMR (CDCl3 /300 MHz) 7.50-7.18 (m, 10H), 2.63 (s, 3H). FABLRMS m/z 268 (M+H). FABHRMS m/z 268.0781 (M+H C16H14NOS requires 268.0796). Anal. Calc'd for C16H13NOS: C, 71.88; H, 4.90; N, 5.24. Found: C, 71.71; H, 4.95; N, 5.17.

後処理

  1. extractionextracted twice with Et2O
  2. washThe combined ethereal phases were washed with NaHCO3 saturated solution, KHSO4 solution (0.25N), and brine
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-2424eca378a64928bcda2c1498ad51e9
出典データセット
uspto-grants-1999_01
特許番号
US05859257

反応ノート

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