Sodium Borohydride, 96% for synthesis - ITW Reagents

AB - The α-hydroxyamido functionality of 2 -deoxytetrahydrouridine (dTHU) makes this seemingly simple and generally useful compound difficult to obtain. Reported synthetic strategies produce extremely poor yields and multiple products, and full characterization data is not available. Described herein is a two-step approach for synthesizing dTHU in increased yields and purity; stability concerns are also addressed. Catalytic reduction (5% Rh/alumina) of 2 deoxyuridine, followed by reduction with sodium borohydride as a limiting reagent, produces dTHU and limits formation of side products. Evidence was obtained for formation of a methoxy-substituted analogue during purification. By this strategy, dTHU of >95% purity can be obtained in 40% yield on a 150 mg scale.

Sodium Borohydride, 96% for synthesis Sodium Tetrahydroborane

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N2 - The α-hydroxyamido functionality of 2 -deoxytetrahydrouridine (dTHU) makes this seemingly simple and generally useful compound difficult to obtain. Reported synthetic strategies produce extremely poor yields and multiple products, and full characterization data is not available. Described herein is a two-step approach for synthesizing dTHU in increased yields and purity; stability concerns are also addressed. Catalytic reduction (5% Rh/alumina) of 2 deoxyuridine, followed by reduction with sodium borohydride as a limiting reagent, produces dTHU and limits formation of side products. Evidence was obtained for formation of a methoxy-substituted analogue during purification. By this strategy, dTHU of >95% purity can be obtained in 40% yield on a 150 mg scale.

Author: Subject: Sodium Borohydride Synthesis - …

The α-hydroxyamido functionality of 2 -deoxytetrahydrouridine (dTHU) makes this seemingly simple and generally useful compound difficult to obtain. Reported synthetic strategies produce extremely poor yields and multiple products, and full characterization data is not available. Described herein is a two-step approach for synthesizing dTHU in increased yields and purity; stability concerns are also addressed. Catalytic reduction (5% Rh/alumina) of 2 deoxyuridine, followed by reduction with sodium borohydride as a limiting reagent, produces dTHU and limits formation of side products. Evidence was obtained for formation of a methoxy-substituted analogue during purification. By this strategy, dTHU of >95% purity can be obtained in 40% yield on a 150 mg scale.

Oishi, T. and Nakata, T. 2001. Zinc Borohydride. e-EROS Encyclopedia of Reagents for Organic Synthesis. .
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Sodium borohydride (tablets) for synthesis. CAS No. 16940-66-2, EC Number 241-004-4. Find MSDS or SDS, a COA, data sheets and more information.

Such compounds find wide use as reducing agents in organic synthesis