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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 481843Generated: October 31, 2026

Methyl acetoacetate → HCID 54721566, compound

https://huagongshe.com/reaction/481843

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl acetoacetateHCID 7757—
ReactantSodium hydrideHCID 24758—
ReactantHCID 11413199HCID 11413199—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
SolventHexaneHCID 8058—
ProductHCID 54721566HCID 54721566—

Reaction Conditions

Temperature0 °C

Reaction Steps

The title compound was prepared as described in General Method 1 using 4.76 g of methyl acetoacetate, 1.97 g of NaH 50% dispersion in oil, 19.5 mL of 2.1M n-butyl lithium in hexane, 8.7 g of [[1,1'-biphenyl]-4-yloxy]-acetaldehyde and 200 mL of tetrahydrofuran. After addition of the aldehyde, the reaction was stirred for 60 minutes at 0° C. then allowed to warm to room temperature overnight. The crude product was triturated from diethyl ether to afford a solid (m.p. 152°-154° C.). 'H NMR (CDCl3) δ2.83 (dd, 1H), 2.95 (dd, 1H) 3.61 (dd, 2H), 4.23 (dd, 1H), 4.38 (dd, 1H), 5.03-5.07 (m, 1H), 6.94-6.98 (m, 2H), 7.30-7.57 (m, 7H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05789440
Source datasetuspto-grants-1998_08
ORD IDord-020e65384b674c24aa88c85b712522ed
Source noteuspto-grants-1998_08