Hydrochloric Acid → 4-[3-Chloro-1-(4-methoxyphenyl)-1H-pyrazol-5-yl]phenol

HRID 351202Notes

Reaction equation

HRID 351202 reaction equation
[Cl:1][C:2]1[CH:6]=[C:5]([C:7]2[CH:12]=[CH:11][C:10]([O:13]COC)=[CH:9][CH:8]=2)[N:4]([C:17]2[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[CH:19][CH:18]=2)[N:3]=1.Cl>O1CCCC1.CO>[Cl:1][C:2]1[CH:6]=[C:5]([C:7]2[CH:12]=[CH:11][C:10]([OH:13])=[CH:9][CH:8]=2)[N:4]([C:17]2[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[CH:19][CH:18]=2)[N:3]=1

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 210908613-Chloro-5-[4-(methoxymethoxy)phenyl]-1-(4-methoxy-phenyl)-1H-pyrazole

Product 1

HCID 1357373744-[3-Chloro-1-(4-methoxyphenyl)-1H-pyrazol-5-yl]phenol

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
50 °C

Procedure

To a solution of 3-chloro-5-[4-(methoxymethoxy)-phenyl]-1-(4-methoxyphenyl)-1H-pyrazole obtained by Example 21 (2.35 g) in tetrahydrofuran (10 ml) and methanol (10 ml) was added 36% hydrochloric acid (0.34 ml) . The reaction mixture was stirred at room temperature for 1 hr, at 50° C. for 1.5 hrs, and at 60° C. for 1.5 hrs.

Workup

  1. waitat 60° C. for 1.5 hrs

Sources & evidence

ORD record
ord-f8036e8d822743d5bf3c5527bea6859c
Source dataset
uspto-grants-2007_02
Patent number
US07183306B2

Reaction notes

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