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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2416497Generated: October 26, 2026

Citric Acid → HCID 22630896, compound

https://huagongshe.com/reaction/2416497

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantMethanolHCID 887—
ReactantDiisobutylaluminum hydrideHCID 14487—
Reactant(E)-3-[4-(2-Pyrimidinyl)phenyl]-2-propenalHCID 22630870—
SolventDichloromethaneHCID 6344—
ProductHCID 22630896HCID 2263089682.4%

Reaction Conditions

Temperature-78 °C

Reaction Steps

DIBAL (1.0 M in THF, 18.0 mL) was added over 10 min to a −78° C. suspension of (2E)-3-[4-(2-pyrimidinyl)phenyl]-2-propenal (2.50 g, 11.89 mmol, prepared as described in Reference Example 29) in dichloromethane (100 mL). The resulting suspension was stirred for 30 min at −78° C., methanol (2 mL) was added cautiously, and stirring was continued for 5 min at −78° C. The mixture was poured into a mixture of 10% aq. citric acid (300 mL) and dichloromethane (200 mL) and allowed to stir for 1 h. The organic layer was separated, washed with sat. aq. NaHCO3 (200 mL) and brine (200 mL), dried (MgSO4), filtered through Celite, and concentrated. The resulting material was triturated with ether and dried in vacuo to provide 2.08 g (82%) of the title compound. MS 213 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06825170B2
Source datasetuspto-grants-2004_11
ORD IDord-bc5af3988eaa4011bb59d56eb54077ec
Source noteuspto-grants-2004_11