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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 485006Generated: November 1, 2026

Phosphorus oxychloride → Ethyl 2-[2-(4-chlorophenyl)-5-isobutyl-4-oxazolyl]acetate

https://huagongshe.com/reaction/485006

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
ReactantEthyl 3-(4-chlorobenzoylamino)-3-isovalerylpropionateHCID 13488803—
SolventDimethylformamideHCID 6228—
ProductEthyl 2-[2-(4-chlorophenyl)-5-isobutyl-4-oxazolyl]acetateHCID 1348880963.4%

Reaction Steps

2.5 g of ethyl 3-(4-chlorobenzoylamino)-3-isovalerylpropionate, 10 ml of dimethylformamide and 2.3 g of phosphorus oxychloride are treated in the same manner as described in Example 1. 1.5 g of ethyl 2-[2-(4-chlorophenyl)-5-isobutyl-4-oxazolyl]acetate are thereby obtained. Yield: 63.3%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04535089
Source datasetuspto-grants-1985_08
ORD IDord-dbab9ff1965e449eaa0ccf8d6cf3a510
Source noteuspto-grants-1985_08