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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 750042Generated: October 25, 2026

6-Chloropiperonyl chloride → (r)-2-[4-(6-Chloro-benzo[1,3]dioxol-5-ylmethoxy)phenoxymethyl]pyrrolidine-1-carboxylic acid tert-butyl ester

https://huagongshe.com/reaction/750042

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6-Chloropiperonyl chlorideHCID 90113—
Reactant(R)-2-(4-Hydroxy-phenoxymethyl)-pyrrolidine-1-carboxylic acid tert-butyl esterHCID 68999591—
Product(r)-2-[4-(6-Chloro-benzo[1,3]dioxol-5-ylmethoxy)phenoxymethyl]pyrrolidine-1-carboxylic acid tert-butyl esterHCID 6899867040%

Reaction Steps

Followed the same procedure as that of step 2 in Example 91 with the use of (R)-2-(4-hydroxy-phenoxymethyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (150 mg, 0.5 mmol) and 5-chloro-6-chloromethyl-benzo[1,3]dioxole (125 mg, 0.6 mmol) to afford the title product (80 mg, 40% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07402684B2
Source datasetuspto-grants-2008_07
ORD IDord-95341039577348e2b88240b862ec8d8e
Source noteuspto-grants-2008_07