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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1928681Generated: November 1, 2026

Potassium Sodium Tartrate → (4R,6S)-4-(tert-butyldimethylsilyloxy)-6-(dimethoxymethyl)-tetrahydro-2H-pyran-2-ol

https://huagongshe.com/reaction/1928681

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium Sodium TartrateHCID 9357—
ReactantDiisobutylaluminum hydrideHCID 14487—
Reactant(4R,6S)-4-(tert-butyldimethylsilyloxy)-6-(dimethoxymethyl)-tetrahydropyran-2-oneHCID 68898127—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
Product(4R,6S)-4-(tert-butyldimethylsilyloxy)-6-(dimethoxymethyl)-tetrahydro-2H-pyran-2-olHCID 69184843—

Reaction Conditions

Temperature-78 °C

Reaction Steps

A solution of 0.6 g of (4R,6S)-4-(tert-butyldimethylsilyloxy)-6-(dimethoxymethyl)-tetrahydropyran-2-one (III′) in 36 mL of dichloromethane is cooled to −78° C. after 2 mL of DIBALH (25% in toluene) are added over 10 minutes. After 1 hour of stirring at −78° C., 0.9 g of Rochelle salt in 60 mL of water are added, phases are separated and dichloromethane is distilled off. The residue is flash chromatographed (MTBE/hexane 1/1) and the solvents are distilled off to get the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08183397B2
Source datasetuspto-grants-2012_05
ORD IDord-671d65f9577e43a8ac53a4db486aa355
Source noteuspto-grants-2012_05