Lawesson's reagent → HCID 135503959, compound

HRID 620171Notes

Reaction equation

HRID 620171 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[C:9]2[CH:18]=[C:17]([CH2:19][CH2:20][C:21]3[CH:26]=[CH:25][C:24]([CH2:27][CH:28]([CH3:30])[CH3:29])=[CH:23][CH:22]=3)[S:16][C:10]=2[NH:11][C:12](=O)[CH2:13][N:14]=1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:40])=CC=1>C1(C)C=CC=CC=1>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[C:9]2[CH:18]=[C:17]([CH2:19][CH2:20][C:21]3[CH:26]=[CH:25][C:24]([CH2:27][CH:28]([CH3:30])[CH3:29])=[CH:23][CH:22]=3)[S:16][C:10]=2[NH:11][C:12](=[S:40])[CH2:13][N:14]=1

Participants

4

Reactant 2

HCID 87949Lawesson's reagentHCID 135462392HCID 135462392, compound

Product 1

HCID 135503959HCID 135503959, compoundYield 155.8%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

A suspension of 9.8 g of 5-(2-chlorophenyl)-7-[2-(4-isobutylphenyl)ethyl]-1,3-dihydro-2H-thieno[2,3-e]-1,4-diazepin-2-one and 5.5 g of Lawesson reagent in 200 ml of toluene is stirred at 40°-43° C. for an hour. The resultant solution is concentrated under reduced pressure, and the residue is subjected to chromatography on silica gel and then eluted with chloroformmethanol (100:1 to 100:2). The objective fraction is concentrated under reduced pressure to give 9.6 g of 5-(2-chlorophenyl)-7-[2-(4-isobutylphenyl)ethyl]-1,3-dihydro-2H-thieno[2,3-e]-1,4-diazepine-2-thione, melting at 180°-182° C. with decomposition.

Workup

  1. concentrationThe resultant solution is concentrated under reduced pressure
  2. washeluted with chloroformmethanol (100:1 to 100:2)
  3. concentrationThe objective fraction is concentrated under reduced pressure

Sources & evidence

ORD record
ord-4ce72238ccde4f859dda16de9c828d26
Source dataset
uspto-grants-1989_04
Patent number
US04820703

Reaction notes

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