Hydrogen Bromide → HCID 14049031, compound

HRID 1761482Notes

Reaction equation

HRID 1761482 reaction equation
C([N:4]1[CH2:9][CH2:8][CH:7]([CH2:10][NH:11][C:12]([NH:14][C:15]2[CH:23]=[CH:22][C:18]3[O:19][CH2:20][O:21][C:17]=3[CH:16]=2)=[S:13])[CH2:6][CH2:5]1)(=O)C.[BrH:24].BrBr>O>[BrH:24].[BrH:24].[NH:4]1[CH2:9][CH2:8][CH:7]([CH2:10][NH:11][C:12]2[S:13][C:23]3[CH:22]=[C:18]4[O:19][CH2:20][O:21][C:17]4=[CH:16][C:15]=3[N:14]=2)[CH2:6][CH2:5]1

Participants

5

Reactant 3

HCID 260Hydrogen BromideHCID 24408BromineHCID 21241596HCID 21241596, compound

Product 1

HCID 14049031HCID 14049031, compoundYield 58.4%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

A mixture of 33.3 parts of N-[(1-acetyl-4-piperidinyl)methyl]-N'-(1,3-benzodioxol-5-yl)thiourea, 112.5 parts of a hydrobromic acid solution 48% in water and 75 parts of water was stirred till all solid entered the solution. Then there were added 16 parts of bromine and stirring was continued overnight at reflux. After cooling, the product was filtered off, washed with ethanol and dried, yielding 26.5 parts (58.4%) of N-(4-piperidinylmethyl)-1,3-dioxolo[4,5-f]benzothiazol-6-amine dihydrobromide; mp. >260° C. (intermediate 44).

Workup

  1. stirringstirring
  2. temperatureat reflux
  3. temperatureAfter cooling
  4. filtrationthe product was filtered off
  5. washwashed with ethanol
  6. customdried

Sources & evidence

ORD record
ord-856c11fa562e4f44a35be6c223928b8b
Source dataset
uspto-grants-1989_05
Patent number
US04826848

Reaction notes

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