Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1697650Generated: October 31, 2026

Tert-butyl acetoacetate → (2S,4R)-methyl 4-(2-chloro-4-fluorophenylsulfonyl)-1-(3-oxobutanoyl)pyrrolidine-2-carboxylate

https://huagongshe.com/reaction/1697650

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTert-butyl acetoacetateHCID 15538—
Reactant(2S,4R)-4-(2-chloro-4-fluoro-benzenesulfonyl)-pyrrolidine-2-carboxylic acid methyl esterHCID 66770675—
Product(2S,4R)-methyl 4-(2-chloro-4-fluorophenylsulfonyl)-1-(3-oxobutanoyl)pyrrolidine-2-carboxylateHCID 86646855—

Reaction Steps

In analogy to the procedure described in example 192f, (2S,4R)-4-(2-chloro-4-fluoro-benzenesulfonyl)-pyrrolidine-2-carboxylic acid methyl ester was reacted with tert-butyl acetoacetate to give the title compound as yellow foam. MS (ESI): m/z=406.3 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163793B2
Source datasetuspto-grants-2012_04
ORD IDord-5187f464213a4f42ac2ab4d366890d5d
Source noteuspto-grants-2012_04