Sulfur → HCID 15037356, compound

HRID 704715Notes

Reaction equation

HRID 704715 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[NH:8][C:9]([NH:11][CH:12]1[CH2:18][CH2:17][CH2:16][N:15]([C:19]([O:21][CH2:22][CH3:23])=[O:20])[CH2:14][CH2:13]1)=S.[S]>[Hg]=O.O1CCCC1>[NH:8]1[C:3]2[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=2[N:1]=[C:9]1[NH:11][CH:12]1[CH2:18][CH2:17][CH2:16][N:15]([C:19]([O:21][CH2:22][CH3:23])=[O:20])[CH2:14][CH2:13]1

Participants

5

Reactant 2

HCID 5362487SulfurHCID 15037318HCID 15037318, compound

Product 1

HCID 15037356HCID 15037356, compoundYield 81%

Reagents, catalysts & solvents 2

HCID 30856Mercuric oxideCatalystHCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 33.6 parts of ethyl 4-[[[(2-aminophenyl)amino]thioxomethyl]amino]hexahydro-1H-azepine-1-carboxylate, 26 parts of mercury(II) oxide, 0.1 parts of sulfur and 450 parts of tetrahydrofuran was stirred for 3 hours at reflux temperature. The reaction mixture was filtered while hot over diatomaceous earth and the filtrate was evaporated. The residue was boiled in acetonitrile. The product was filtered off and dried, yielding 24.5 parts (81.0%) of ethyl 4-(1H-benzimidazol-2-yl-amino)hexahydro-1H-azepine-1-carboxylate; mp. 174.6° C. (compound 10).

Workup

  1. temperatureat reflux temperature
  2. filtrationThe reaction mixture was filtered while hot over diatomaceous earth
  3. customthe filtrate was evaporated
  4. filtrationThe product was filtered off
  5. customdried

Sources & evidence

ORD record
ord-d81045bd4ab64867bad10e558a848290
Source dataset
uspto-grants-1991_01
Patent number
US04988689

Reaction notes

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