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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 328152Generated: October 30, 2026

Pyridine → ZR 2646

https://huagongshe.com/reaction/328152

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantPivaloyl chlorideHCID 62493—
ReactantPyridinium chlorideHCID 10176127—
ReactantEthyl 4-(2-hydroxybutoxy)benzoateHCID 21444117—
ProductZR 2646HCID 16279289%

Reaction Steps

In pyridine (10ml) 1.2 g (5 mmol) of 1-(p-ethoxycarbonyl-phenoxy)-butan- 2-ol was dissolved and to this solution was gradually added 0.6 g (5 mmol) of pivaloyl chloride cooling in an ice bath. The mixture was stirred at room temperature for 3 hours after the addition was completed. During the course of the reaction pyridine hydrochloride precipitated. The reaction mixture was then poured in ice water and extracted with ethyl acetate. The extract was washed with water, dried, and concentrated to afford 1.6g of 1-(p-ethoxycarbonyl-phenoxy)-butan-2-ol pivalate (compound No. 1) in a yield of 89% as a light yellow viscous oily substance.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04016186
Source datasetuspto-grants-1977_04
ORD IDord-0f22a9d3d5004617b51f20e6cd35464c
Source noteuspto-grants-1977_04