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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1818109Generated: October 25, 2026

2,2-Dimethyl-1,3-dioxane-4,6-dione → 5-(Biphenyl-3-ylaminomethylene)-2,2-dimethyl-[1,3]dioxane-4,6-dione

https://huagongshe.com/reaction/1818109

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,2-Dimethyl-1,3-dioxane-4,6-dioneHCID 16249—
Reactant3-AminobiphenylHCID 16717—
ReactantEthyl orthoformateHCID 31214—
Product5-(Biphenyl-3-ylaminomethylene)-2,2-dimethyl-[1,3]dioxane-4,6-dioneHCID 2198405595.5%

Reaction Steps

Triethyl orthoformate (148 g, 1.00 mol), Meldrum's acid (137 g, 0.95 mol), and biphenyl-3-ylamine (155 g, 0.916 mol) were combined and treated according to the general procedure described in Part A of Example 1 to obtain 283 g of 5-(biphenyl-3-ylaminomethylene)-2,2-dimethyl-[1,3]dioxane-4,6-dione as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07598382B2
Source datasetuspto-grants-2009_10
ORD IDord-59be413d3886439399b6ea22dac8de74
Source noteuspto-grants-2009_10