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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 258198Generated: October 26, 2026

Methane → Ethyl alpha-nitro-5H-dibenzo[a,d]cycloheptene-5-acetate

https://huagongshe.com/reaction/258198

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethaneHCID 297—
ReactantDiethyl EtherHCID 3283—
ReactantEthyl nitroacetateHCID 69379—
ReactantDibenzosuberenolHCID 82577—
SolventMethanolHCID 887—
ProductEthyl alpha-nitro-5H-dibenzo[a,d]cycloheptene-5-acetateHCID 1529076041.3%

Reaction Conditions

Temperature120 °C

Reaction Steps

Dibenzosuberenol (42 g, 0.2 mol) is combined with ethyl nitroacetate (25 mL, 0.23 mol) and the mixture is heated at 120° C. (oil bath) until melted and then kept at 110° C. for 2.5 hours. The oil bath is removed and the cooled reaction mixture is dissolved in 50 mL of methanol and taken up into 350 mL of boiling diethyl ether. The dark solution is treated with charcoal, filtered, and cooled overnight. A precipitate is collected by filtration, washed with hexane, diethyl ether, dried under vacuum at room temperature to give 26.7 g of the title compound; mp 101°-103° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05264577
Source datasetuspto-grants-1993_11
ORD IDord-12017e8526524ccfa71bdf91106d4441
Source noteuspto-grants-1993_11