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112022-81-8 - (S)-2-Methyl-CBS-oxazaborolidine monohydrate, 94% - (S)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole - L09219 - Alfa Aesar

L09219 (S)-2-Methyl-CBS-oxazaborolidine monohydrate, 94%

Número CAS
112022-81-8
Nombre Alternativo
(S)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole

Tamaño Precio ($) Cantidad Disponibilidad
250mg 125,00
1g 395,00
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(S)-2-Methyl-CBS-oxazaborolidine monohydrate, 94%

MDL
MFCD00078439

Propiedades químicas

Fórmula
C18H20BNO•H2O
Peso molecular
295.19 (277.17anhy)
Punto de fusión
115-121°

Referencias documentales

Air-stable solid prepared by a modification of Corey's procedure, on which his literature results were based. For anhydrous reagent, see (S)-2-Methyl-CBS-oxazaborolidine, L14583.

/n

Catalyst for the CBS (Corey, Bakshi, Shibata) reduction of prochiral ketones with borane-THF, with high enantioselectivity (see (S)-(-)-ɑ,ɑ-Diphenyl­prolinol, L09217): J. Am . Chem. Soc., 109, 7925 (1987):

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For successful use of this system in a scaled up asymmetric synthesis of the antiarrythmia agent d-Sotalol, see: Org. Process Res. Dev., 1. 176 (1997). For use in enantioselective reduction of ketones containing heteroatoms, see: Tetrahedron Lett., 34, 785 (1993). For the asymmetric reduction of ɑ-ketoimines, see: Tetrahedron Lett., 35, 5551 (1994).

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For reviews of oxazaborolidines as enantioselective catalysts, see: Angew. Chem. Int. Ed., 31, 729 (1992); 37, 1986 (1998); Tetrahedron: Asymmetry, 3, 1475 (1992).

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For reviews of the asymmetric reduction of ketones, see: Synthesis, 605 (1992); Chem. Ind. (London), 552 (1994).

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Indicaciones de peligro y de precaución del GHS

Indicaciones de precaución: P260-P201-P280-P304+P340-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves/protective clothing/eye protection/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Otras referencias

Beilstein
8492123
Código de tarifa arancelaria unificado
2934.99
TSCA
No

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