Lithium Hydroxide → 2-(4-Methyl-1,1-dioxido-6-(2,4,6-trichlorophenyl)-1,2,6-thiadiazinan-2-yl)acetic acid

HRID 1522067ノート

反応式

HRID 1522067 の反応式
[CH3:1][CH:2]1[CH2:7][N:6]([C:8]2[C:13]([Cl:14])=[CH:12][C:11]([Cl:15])=[CH:10][C:9]=2[Cl:16])[S:5](=[O:18])(=[O:17])[N:4]([CH2:19][C:20]([O:22]C)=[O:21])[CH2:3]1.[Li+].[OH-]>C1COCC1.CO.O>[CH3:1][CH:2]1[CH2:7][N:6]([C:8]2[C:13]([Cl:14])=[CH:12][C:11]([Cl:15])=[CH:10][C:9]=2[Cl:16])[S:5](=[O:17])(=[O:18])[N:4]([CH2:19][C:20]([OH:22])=[O:21])[CH2:3]1

参加物

6

反応物 2

HCID 3939Lithium HydroxideHCID 86708915Methyl 2-(4-methyl-1,1-dioxido-6-(2,4,6-trichlorophenyl)-1,2,6-thiadiazinan-2-yl)acetate

生成物 1

HCID 867089162-(4-Methyl-1,1-dioxido-6-(2,4,6-trichlorophenyl)-1,2,6-thiadiazinan-2-yl)acetic acid収率 95.5%

試薬・触媒・溶媒 3

HCID 887Methanol溶媒HCID 962Water溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

To methyl 2-(4-methyl-1,1-dioxido-6-(2,4,6-trichlorophenyl)-1,2,6-thiadiazinan-2-yl)acetate (2.3 g, 5.4 mmol) in THF (12 mL) and MeOH (12 mL), was dropwisely added LiOH (1.1 g, 27.0 mmol) in H2O. The reaction mixture was agitated for 3 hr at room temperature. After the completion of the reaction, the resultant was concentrated and its pH was adjusted down to 3 with 2 N HCl after the addition of water. The resultant was extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure, giving the title compound (2.0 g, y=83%, solid). 1H NMR (300 MHz, CDCl3) δ 7.42 (d, J=2.4 Hz, 1H), 7.38 (d, J=2.4 Hz, 1H), 4.53 (d, J=17 Hz, 1H), 4.16-3.88 (m, 4H), 3.40-3.38 (m, 1H), 3.20-3.15 (m, 1H), 2.57-2.11 (m, 1H), 0.93 (d, J=7.1 Hz, 3H).

後処理

  1. customAfter the completion of the reaction
  2. concentrationthe resultant was concentrated
  3. additionafter the addition of water
  4. extractionThe resultant was extracted with EtOAc
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-b68d6403e40c425eb28bc5233566b791
出典データセット
uspto-grants-2015_07
特許番号
US09073906B2

反応ノート

読み込み中…