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474606

Sigma-Aldrich

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

Synonym(s):

(S,S)-Co(salen), (S,S)-Jacobsen HKR catalyst

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About This Item

Linear Formula:
[[[(CH3)3C]2C6H2-2-(O-)CH=N]2C6H10]Co
CAS Number:
188264-84-8
Molecular Weight:
603.74
MDL number:
MFCD01631278
UNSPSC Code:
12352001
PubChem Substance ID:
24871025
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-;/m0./s1

InChI key

ZFWPDJKMASHRPT-IKKUFEJKSA-L

Application

(S,S)-(+)-N,N′-Bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminocobalt(II) may be used as a catalyst for the Jacobsen′s hydrolytic kinetic resolution of racemic epoxides, which is a key step during the multi-step synthesis of (+)-patulolide C, macrosphelides(I and G), (-)-(3S,6R)-3,6-dihydroxy-10-methylundecanoic acid, dodoneine, epidodoneine and protein kinase C epsilon (PKCe) inhibitors.
Catalyst for the hydrolytic kinetic resolution of terminal epoxides and the enantioselective ring opening of meso epoxides.

Legal Information

Sold under license from Sterling Pharma Solutions Limited.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Strategies for the modulation of phase II metabolism in a series of PKCe inhibitors.
Clemens JJ, et al.
Bioorganic & Medicinal Chemistry Letters, 24(15), 3398-3402 (2014)
The enantioselective Diels-Alder reaction of 1-methoxybuta-1, 3-diene with n-butyl glyoxylate catalyzed by the (salen) Cr (III) Cl and Co (II) complexes.
Kwiatkowski P, et al.
Tetrahedron Asymmetry, 15(20), 3189-3194 (2004)
Total Synthesis of (+)-Dodoneine and Its 6-Epimer.
Sabitha G, et al.
Synthesis, 2009(19), 3285-3292 (2009)
A Concise Synthesis of (-)-(3S, 6R)-3, 6-Dihydroxy-10-methylundecanoic Acid Using a Cross-Metathesis Approach.
Sabitha G, et al.
Synthesis, 2010(07), 1217-1222 (2010)
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
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