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474592

Sigma-Aldrich

(R,R)-(−)-N,N′-Bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminocobalt(II)

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Synonym(s):
(R,R)-N,N′-Bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminatocobalt(II), (R,R)-Co(salen), (R,R)-Jacobsen HKR catalyst
Linear Formula:
[[[(CH3)3C]2C6H2-2-(O-)CH=N]2C6H10]Co
CAS Number:
Molecular Weight:
603.74
MDL number:
PubChem Substance ID:
NACRES:
NA.22

mp

>350 °C (lit.)

SMILES string

CC(C)(C)c1cc2C=[N@H]3[C@@H]4CCCC[C@H]4[N@@H]5=Cc6cc(cc(c6O[Co]35Oc2c(c1)C(C)(C)C)C(C)(C)C)C(C)(C)C

InChI

1S/C36H54N2O2.Co/c1-33(2,3)25-17-23(31(39)27(19-25)35(7,8)9)21-37-29-15-13-14-16-30(29)38-22-24-18-26(34(4,5)6)20-28(32(24)40)36(10,11)12;/h17-22,29-30,39-40H,13-16H2,1-12H3;/q;+2/p-2/b37-21+,38-22+;/t29-,30-;/m1./s1

InChI key

ZFWPDJKMASHRPT-CITKKJEGSA-L

Related Categories

Application

Catalyst for the hydrolytic kinetic resolution of terminal epoxides and the enantioselective ring opening of meso epoxides.

Pictograms

Exclamation markHealth hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Chronic 3 - Skin Sens. 1A - STOT RE 1

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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M Tokunaga et al.
Science (New York, N.Y.), 277(5328), 936-938 (1997-08-15)
Epoxides are versatile building blocks for organic synthesis. However, terminal epoxides are arguably the most important subclass of these compounds, and no general and practical method exists for their production in enantiomerically pure form. Terminal epoxides are available very inexpensively
Jacobsen, E.N. et al.
Tetrahedron Letters, 38, 773-773 (1997)

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