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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1935648Generated: October 31, 2026

Water → HCID 18416669, compound

https://huagongshe.com/reaction/1935648

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthyl AcetateHCID 8857—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 18416637HCID 18416637—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 18416669HCID 1841666977%

Reaction Conditions

Temperature55 °C

Reaction Steps

80 μl of NaOH, 1M, were added to 15 mg of 3-(1-benzylindazole-3-carboxamido)-1,1-dichlorobut-1-ene (40 μmol) in 20 μl of N-methylpyrrolidone under argon and the mixture was heated at 55° C. for 1 hour. It was cooled and 0.8 ml of water and 8 ml of ethyl acetate were added. The organic phase was concentrated and the residue was purified by preparative TLC (SiO2). 9.9 mg (77%) of 2-(1-benzylindazol-3-yl)-5-hydroxymethyl-4-methyl-oxazole were obtained (melting point 127-129° C.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06387940B1
Source datasetuspto-grants-2002_05
ORD IDord-255adadc28574ae08c4526b965321a66
Source noteuspto-grants-2002_05