Water → 5-(3-Chlorophenoxy)pyrazolo[1,5-a]pyrimidine-3-carbaldehyde

HRID 383670Notes

Reaction equation

Cl[C:2]1[CH:7]=[CH:6][N:5]2[N:8]=[CH:9][C:10]([CH:11]=[O:12])=[C:4]2[N:3]=1.[Cl:13][C:14]1[CH:15]=[C:16]([OH:20])[CH:17]=[CH:18][CH:19]=1.C([O-])([O-])=O.[K+].[K+].O>CN(C=O)C>[Cl:13][C:14]1[CH:15]=[C:16]([CH:17]=[CH:18][CH:19]=1)[O:20][C:2]1[CH:7]=[CH:6][N:5]2[N:8]=[CH:9][C:10]([CH:11]=[O:12])=[C:4]2[N:3]=1

Participants

Conditions

Temperature: 70 °C

Procedure

To 5-chloropyrazolo[1,5-a]pyrimidine-3-carbaldehyde (50 mg, 0.276 mmol) in DMF was added 3-chlorophenol (42 mg, 0.331 mmol) and K2CO3 (190 mg, 1.380 mmol). The mixture was heated at 70° C. for several hours. Water was added and the solid formed was isolated by filtration and air dried to yield 70 mg 5-(3-chlorophenoxy)pyrazolo[1,5-a]pyrimidine-3-carbaldehyde as an orange solid (93% yield). LCMS (M+1=274)

Workup

customthe solid formed
customwas isolated by filtration and air
customdried

Sources & evidence

ORD record: ord-4376c15c37f34bb993d77bec3b4df967
Source dataset: uspto-grants-2013_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08367681B2

Reaction notes

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