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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1967178Generated: October 25, 2026

Diethyl Oxalate → Ethyl 2-oxo-2-(10-oxotricyclo[6.2.2.02,7]dodeca-2,4,6-trien-9-yl)acetate

https://huagongshe.com/reaction/1967178

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl OxalateHCID 7268—
ReactantHexamethyldisilazaneHCID 13838—
Reactant1,4-Ethanonaphthalen-2(1H)-one, 3,4-dihydro-HCID 582596—
Reactant10-(2,4-Dichlorophenyl)-10,11-diazatetracyclo[6.5.2.02,7.09,13]pentadeca-2,4,6,9(13),11-pentaene-12-carboxylic acidHCID 86623337—
ReactantButyllithiumHCID 178418339—
ProductEthyl 2-oxo-2-(10-oxotricyclo[6.2.2.02,7]dodeca-2,4,6-trien-9-yl)acetateHCID 67029310—

Reaction Steps

The title product was prepared by a procedure similar to that described for step 1 of intermediate 1. From tricyclo[6.2.2.02,7]dodeca-2,4,6-trien-9-one [prepared by one of the methods available in the art of organic synthesis, e.g., as described in Hales et. al. Tetrahedron, 1995, 51, 7777-7790] (2.5 g, 14.53 mmol), hexamethyldisilazane (4.9 ml, 23.2 mmol), 2.34M n-BuLi (10 ml, 23.4 mmol) and diethyl oxalate (3.18 ml, 21.18 mmol) the desired product was obtained (2.3 g, 63%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420689B2
Source datasetuspto-grants-2013_04
ORD IDord-51c3c5e8720f485f9bc2c50725805891
Source noteuspto-grants-2013_04