9-[4-(3-Methoxyphenoxy)phenyl]-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide → 9-[4-(3-Methoxyphenoxy)phenyl]-3,4,6,7,8,9-hexahydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

HRID 2035846Notes

Reaction equation

HRID 2035846 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:25]=[CH:26][CH:27]=1)[O:6][C:7]1[CH:12]=[CH:11][C:10]([C:13]2[C:18]3=[N:19][S:20](=[O:24])(=[O:23])[CH2:21][CH2:22][N:17]3[CH:16]=[CH:15][CH:14]=2)=[CH:9][CH:8]=1>C1COCC1.CO.[Pt](=O)=O>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:25]=[CH:26][CH:27]=1)[O:6][C:7]1[CH:8]=[CH:9][C:10]([CH:13]2[C:18]3=[N:19][S:20](=[O:23])(=[O:24])[CH2:21][CH2:22][N:17]3[CH2:16][CH2:15][CH2:14]2)=[CH:11][CH:12]=1

Participants

5

Reactant 1

HCID 667493429-[4-(3-Methoxyphenoxy)phenyl]-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

Product 1

HCID 667485899-[4-(3-Methoxyphenoxy)phenyl]-3,4,6,7,8,9-hexahydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxideYield 53.9%

Reagents, catalysts & solvents 3

HCID 345198Adams' catalystCatalystHCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

Platinum(IV) oxide (37 mg) was added to a solution of 9-[4-(3-methoxyphenoxy)phenyl]-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide (129 mg) in THF (dry) (20 mL) and MeOH (20 mL) and the mixture was stirred at room temperature under hydrogen overnight. The insoluble material was removed by filtration, and the filtrate was concentrated in vacuo. The residue was crystallized from THF/IPE to give the title compound (70.2 mg) as colorless crystals.

Workup

  1. customThe insoluble material was removed by filtration
  2. concentrationthe filtrate was concentrated in vacuo
  3. customThe residue was crystallized from THF/IPE

Sources & evidence

ORD record
ord-b0a6762f18c4463196b9a6f5ed536f75
Source dataset
uspto-grants-2013_11
Patent number
US08575154B2

Reaction notes

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