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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 973211Generated: October 30, 2026

Triethyl phosphite → HCID 12720209, compound

https://huagongshe.com/reaction/973211

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethyl phosphiteHCID 31215—
Reactant5,5,7,7-tetramethyl-4-oxido-3-phenylfuro[3,4-e][1,2,4]triazin-4-iumHCID 6412720—
ProductHCID 12720209HCID 12720209—

Reaction Steps

A mixture of 5.42 g. (0.02 mole) 5,7-dihydro-5,5,7,7-tetramethyl-3-phenylfuro[ 3,4-e]-as-triazine-4oxide and 70 ml. triethylphosphite is refluxed under nitrogen for 18 hours at a bath temperature of 180° C. The solvent is removed in vacuo and the residue recrystallized from aqueous ethanol to give 5,7-dihydro-5,5,7,7-tetramethyl-3-phenylfuro[3,4-e]-as-triazine, m.p. 90°-91° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04055643
Source datasetuspto-grants-1977_10
ORD IDord-45b991ecec6d416e8359feda08b9ed72
Source noteuspto-grants-1977_10