Hydrochloric Acid → N-(4-azidophenylsulfonyl)-N'-(4-methoxy-6-methylpyrimidin-2-yl)urea

HRID 280442Notes

Reaction equation

HRID 280442 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([CH3:9])[N:6]=[C:5]([N:10](C2C=CC=CC=2)[C:11](=[O:13])[O-])[N:4]=1.[N:20]([C:23]1[CH:28]=[CH:27][C:26]([S:29]([NH2:32])(=[O:31])=[O:30])=[CH:25][CH:24]=1)=[N+:21]=[N-:22].N12CCCCC1C=NCCC2.Cl>O1CCOCC1.O>[N:20]([C:23]1[CH:28]=[CH:27][C:26]([S:29]([NH:32][C:11]([NH:10][C:5]2[N:4]=[C:3]([O:2][CH3:1])[CH:8]=[C:7]([CH3:9])[N:6]=2)=[O:13])(=[O:30])=[O:31])=[CH:25][CH:24]=1)=[N+:21]=[N-:22]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 3141121,5-Diazabicyclo(5,4,0)undec-5-eneHCID 35585904-AzidobenzenesulfonamideHCID 18954641N-(4-methoxy-6-methylpyrimidin-2-yl)phenylcarbamate

Product 1

HCID 23320462N-(4-azidophenylsulfonyl)-N'-(4-methoxy-6-methylpyrimidin-2-yl)ureaYield 67%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 312751,4-DioxaneSolvent2×

Procedure

A solution of 2.9 g of N-(4-methoxy-6-methylpyrimidin-2-yl)phenylcarbamate in 10 ml of dioxan is added dropwise at 20°-25° C. to a solution of 2 g of 4-azidophenylsulfonamide and 1.6 ml of 1,5-diazabicyclo(5,4,0)-undec-5-ene in 20 ml of dioxan and the mixture is stirred for 3 hours at the same temperature. The reaction mixture is then taken up in 200 ml of water and the aqueous mixture is then acidified with hydrochloric acid to pH 2. The precipitated product is isolated, washed with ethyl acetate and dried, affording N-(4-azidophenylsulfonyl)-N'-(4-methoxy-6-methylpyrimidin-2-yl)urea in 67% yield in the form of greenish crystals with a melting point of 192° C.

Workup

  1. customThe precipitated product is isolated
  2. washwashed with ethyl acetate
  3. customdried

Sources & evidence

ORD record
ord-f5cd7d39e6fb45bea731dea7ea0ea439
Source dataset
uspto-grants-1986_05
Patent number
US04589912

Reaction notes

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