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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 127724Generated: October 25, 2026

1,4-Dioxane-2,6-dione → Mcn 4308

https://huagongshe.com/reaction/127724

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-Dioxane-2,6-dioneHCID 78232—
Reactant4-BenzhydrylpiperidineHCID 88278—
SolventDichloromethaneHCID 6344—
ProductMcn 4308HCID 196442—

Reaction Steps

In a similar operation, 5.0 grams (20 millimoles) of 4-benzhydrylpiperidine in 140 milliliters of dichloromethane was reacted with 2.3 grams (20 millimoles) of diglycolic anhydride in 200 milliliters of dichloromethan to obtain the desired [2-(4-benzhydrylpiperidino)-2-oxoethoxy]acetic acid product as a white solid which after purifying with ethyl acetate-hexane mixture had a m.p. of 139.5°-141° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04256891
Source datasetuspto-grants-1981_03
ORD IDord-0ca4a9a8b8564ad8b2d091818c6f5ca3
Source noteuspto-grants-1981_03