Diallylamine → 3-(4-diallylaminomethyl-thiazol-2-yl)-8-fluoro-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one

HRID 1737374Notes

Reaction equation

HRID 1737374 reaction equation
Cl[CH2:2][C:3]1[N:4]=[C:5]([C:8]2[N:9]=[CH:10][N:11]3[C:17]4[CH:18]=[CH:19][C:20]([F:22])=[CH:21][C:16]=4[C:15](=[O:23])[N:14]([CH3:24])[CH2:13][C:12]=23)[S:6][CH:7]=1.[CH2:25]([NH:28][CH2:29][CH:30]=[CH2:31])[CH:26]=[CH2:27]>O1CCCC1>[CH2:25]([N:28]([CH2:2][C:3]1[N:4]=[C:5]([C:8]2[N:9]=[CH:10][N:11]3[C:17]4[CH:18]=[CH:19][C:20]([F:22])=[CH:21][C:16]=4[C:15](=[O:23])[N:14]([CH3:24])[CH2:13][C:12]=23)[S:6][CH:7]=1)[CH2:29][CH:30]=[CH2:31])[CH:26]=[CH2:27]

Participants

4

Reactant 2

HCID 31279DiallylamineHCID 218422963-(4-chloromethyl-thiazol-2-yl)-8-fluoro-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one

Product 1

HCID 218422383-(4-diallylaminomethyl-thiazol-2-yl)-8-fluoro-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-oneYield 66%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A suspension of 1.0 g (0.00275 mol) of 3-(4-chloromethyl-thiazol-2-yl)-8-fluoro-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one in 50 ml of tetrahydrofuran was treated wth 4.1 ml (0.033 mol) of diallylamine. After stirring at reflux for 18 hrs. the solution obtained was completely freed from the solvents. The residue was chromatographed over silica gel with dichloromethane/methanol 19:1 as the eluent and recrystallized from hot isopropyl ether. There was obtained 0.76 g (66%) of 3-(4-diallylaminomethyl-thiazol-2-yl)-8-fluoro-5-methyl-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepin-6-one as white crystals; m.p. 125-127°.

Workup

  1. temperatureat reflux for 18 hrs
  2. customthe solution obtained
  3. customThe residue was chromatographed over silica gel with dichloromethane/methanol 19:1 as the eluent
  4. customrecrystallized from hot isopropyl ether

Sources & evidence

ORD record
ord-632ed42dba034b6ca368d4947c0c44ea
Source dataset
uspto-grants-1999_10
Patent number
US05962450

Reaction notes

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