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457698 Aldrich

(R)-(+)-2-Methyl-CBS-oxazaborolidine solution

1 M in toluene

DOWNLOAD MSDS (PDF)

Synonym: α,α-Diphenyl-D-prolinolmethylboronic acid cyclamide ester, (R)-1-Methyl,3,3-diphenyl-tetrahydro-pyrrolo(1,2-c)(1,3,2)oxazaborole, (R)-Tetrahydro-1-methyl-3,3-diphenyl-1H,3H-pyrrolo[1,2-c][1,3,2]oxazaborole

(R)-(+)-2-Methyl-CBS-oxazaborolidine solution 1 M in toluene
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Properties

Related Categories Asymmetric Synthesis, Chemical Synthesis, Chiral Catalysts, Ligands, and Reagents, Reduction
concentration   1 M in toluene
bp   111 °C
density   0.95 g/mL at 25 °C
storage temp.   room temp

Description

Packaging

25 mL in Sure/Seal™

5 mL in glass bottle

Physical form

Precipitate may form in storage, but does not affect product quality. Gently heat product to 80−90 °C under an inert atmosphere to redissolve solids.

Application

CBS Catalysts for Asymmetric Reduction and Asymmetric Synthesis

The CBS (Corey-Bakshi-Shibata) oxazaborolidine catalyst has been used in the asymmetric reduction of prochiral ketones. Other applications include the enantioselective synthesis of α-hydroxy acids, α-amino acids, C2 symmetrical ferrocenyl diols, and propargyl alcohols.
Used in a desymmetrizing reduction leading to (S)-4-hydroxycyclohexenone.

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