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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1047994Generated: October 26, 2026

Trimethylsilyldiazomethane → HCID 67080255, compound

https://huagongshe.com/reaction/1047994

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrimethylsilyldiazomethaneHCID 167693—
Reactant7-fluoro-2,2-dimethyl-3,4-dihydro-2H-chromene-4-carboxylic acidHCID 67080394—
SolventMethanolHCID 887—
SolventDichloromethaneHCID 6344—
ProductHCID 67080255HCID 6708025575.6%

Reaction Steps

To 7-fluoro-2,2-dimethyl-3,4-dihydro-2H-chromene-4-carboxylic acid (0.280 g, 1.25 mmol) in CH2Cl2 (5 mL) and MeOH (1 mL) was added TMSCHN2 (0.937 mL, 1.87 mmol) dropwise. After the addition, the reaction was concentrated, loaded onto silica gel, and the product eluted using a gradient of 5% ethyl acetate/hexanes to 40% ethyl acetate/hexanes to provide the title compound (0.225 g, 75.6% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08569522B2
Source datasetuspto-grants-2013_10
ORD IDord-1044b212270e44d3be31a06de9b15704
Source noteuspto-grants-2013_10