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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 392066Generated: October 30, 2026

Chloroacetonitrile → HCID 22662746, compound

https://huagongshe.com/reaction/392066

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroacetonitrileHCID 7856—
Reactant4-Piperidinylmethyl 8-amino-7-chloro-1,4-benzodioxan-5-carboxylateHCID 19068143—
SolventDimethylformamideHCID 6228—
SolventTriethylamineHCID 8471—
ProductHCID 22662746HCID 2266274653%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of chloroacetonitrile (2.15 ml) and (4piperidinyl)-methyl 8-amino-7-chloro-2,3-dihydro-1,4-benzodioxin-5-carboxylate (11 g) in N,N-diethylethanamine (7 ml) and DMF (150 ml) was stirred at 60° C. until the reaction was complete. Then, the mixture was cooled. The solvent was evaporated. The residue was partitioned between DCM and water. The separated organic layer was dried, filtered and the solvent was evaporated. The residue was crystallized from ACN and the precipitate was filtered off and dried (vacuum, 50° C.), yielding 6.6 g (53%) [1-(cyanomethyl)-4-piperidinyl]-methyl 8-amino-7-chloro-2,3-dihydro-1,4-benzodioxin-5-carboxylate (intermediate 14).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06800628B2
Source datasetuspto-grants-2004_10
ORD IDord-9da30b08dc4f4cabadfcd75c64ce3ade
Source noteuspto-grants-2004_10