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Key Documents

404411

Sigma-Aldrich

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

98%

Synonym(s):

(R,R)-Jacobsen’s ligand

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About This Item

Linear Formula:
[[(CH3)3C]2C6H2-2-(OH)CH=N]2C6H10
CAS Number:
Molecular Weight:
546.83
Beilstein/REAXYS Number:
5464823
MDL number:
UNSPSC Code:
12352116
PubChem Substance ID:
NACRES:
NA.22

assay

98%

form

solid

optical activity

[α]20/D −315±15°, c = 1 in methylene chloride

mp

205-207 °C (lit.)

SMILES string

CC(C)(C)c1cc(\C=N\[C@@H]2CCCC[C@H]2\N=C\c3cc(cc(c3O)C(C)(C)C)C(C)(C)C)c(O)c(c1)C(C)(C)C

InChI

1S/C36H54N2O2/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/b37-21+,38-22+/t29-,30-/m1/s1

InChI key

FYNXDGNCEBQLGC-LQWPWIHBSA-N

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Application

Amylases from Aspergillus oryzae are used to prevent staling in the baking industry, clarify haze from fruit juices and alcoholic beverages, and produce glucose and maltose syrup products.
Versatile ligand for asymmetric catalysis. Ligand used for preparing Jacobsen′s catalyst suitable for enantioselective epoxidation of olefins lacking functional groups.

Lipases are used industrially for the resolution of chiral compounds and the transesterification production of biodiesel.

Biochem/physiol Actions

α-amylase catalyzes the hydrolysis of internal α-1,4-O-glycosidic bonds in starches to release α-anomeric sugars.
Lipases catalyze the hydrolysis of triacylglycerols into glycerol and free fatty acids.

Legal Information

Manufactured under license by Sterling Pharma Solutions Limited, using Jacobsen HKR technology.

Pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Journal of the American Chemical Society, 113, 7063-7063 (1991)
S. Chang et al.
The Journal of Organic Chemistry, 58, 6939-6939 (1993)
L. Deng et al.
The Journal of Organic Chemistry, 57, 4320-4320 (1992)
E.N. Jacobsen et al.
Journal of the American Chemical Society, 113, 7063-7063 (1991)

Articles

The first reports of salen used as ligands with manganese for asymmetric epoxidation reactions.

Chromatograms

application for HPLCapplication for HPLC

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