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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1461361Generated: November 3, 2026

Formaldehyde → HCID 15881114, compound

https://huagongshe.com/reaction/1461361

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
Reactant2,2-Dimethyl-1,3-dioxane-4,6-dioneHCID 16249—
Reactant5-BromoindoleHCID 24905—
ReactantL-ProlineHCID 145742—
SolventAcetonitrileHCID 6342—
ProductHCID 15881114HCID 15881114417.3%

Reaction Steps

A solution of 5-bromoindole (10.07 g, 51 mmol), Meldrum's acid (7.38 g, 51 mmol), proline (1.24 g), and 5.2 ml of 30% aqueous formaldehyde in 100 ml of acetonitrile was allowed to stand at room temperature for 24 hours. The acetonitrile was removed in vacuo. Crystallization of the product from methanol (50 ml) provided 15.83 g of 3-(2,2-dimethyl-4,6-dioxo-1,3-dioxane-5-yl)methyl-5-bromoindole as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05075313
Source datasetuspto-grants-1991_12
ORD IDord-ae92c0f1983649649f18a011a7b183c9
Source noteuspto-grants-1991_12