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346721

Sigma-Aldrich

(1R,2R)-(−)-1,2-Diaminocyclohexane

98%

Synonym(s):

(1R)-trans-1,2-Cyclohexanediamine

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About This Item

Linear Formula:
C6H10(NH2)2
CAS Number:
20439-47-8
Molecular Weight:
114.19
Beilstein:
2801643
MDL number:
MFCD00062985
UNSPSC Code:
12352116
PubChem Substance ID:
24861433
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

200

Assay

98%

form

solid

optical activity

[α]20/D −25°, c = 5 in 1 M HCl

SMILES string

N[C@@H]1CCCC[C@H]1N

InChI

1S/C6H14N2/c7-5-3-1-2-4-6(5)8/h5-6H,1-4,7-8H2/t5-,6-/m1/s1

InChI key

SSJXIUAHEKJCMH-PHDIDXHHSA-N

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Application

(1R,2R)-(-)-1,2-Diaminocyclohexane may be used to prepare:
  • Chiral C2-symmetric diphenylphosphoramide and diphenylthiophosphoramide ligands by reacting with diphenylphosphinic chloride and diphenylthiophosphinic chloride, respectively.[1]
  • Bis-urea and the amino-thiourea ligands by reacting with isocyanates and isothiocyanates, respectively.[2]
  • Biologically active chiral palladium(II) and platinum(II) complexes.[3]
Versatile ligand for the formation of metal complexes.[4] Used in the synthesis of chiral tropocoronands which have potential utility in asymmetric catalysis.[5]

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

158.0 °F - closed cup

Flash Point(C)

70 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000403794
0000403797
0000378673
0000351884
0000351885

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C 2-Symmetric diphenylphosphoramide and diphenylthiophosphoramide derived from (1R, 2R)-1, 2-diaminocyclohexane as ligands for the titanium (IV) alkoxide-promoted addition of diethylzinc to aldehydes.
Shi M and Sui WS
Tetrahedron Asymmetry, 10(17), 3319-3325 (1999)
Chiral palladium (II) and platinum (II) complexes of diaminocyclohexane: X-ray structures of (1R, 2R)-(-)-1, 2-diaminocyclohexane dihydrochloride and its corresponding oxalato platinum (II) complex.
Abu-Surrah AS, et al.
Polyhedron, 22(12), 1529-1534 (2003)
Chiral amino-urea derivatives of (1R, 2R)-1, 2-diaminocyclohexane as ligands in the ruthenium catalysed asymmetric reduction of aromatic ketones by hydride transfer.
Bied C, et al.
Tetrahedron Asymmetry, 12(2), 329-336 (2001)
Luka Ðorđević et al.
Nature communications, 9(1), 3442-3442 (2018-08-26)
The chirality of (nano)structures is paramount in many phenomena, including biological processes, self-assembly, enantioselective reactions, and light or electron spin polarization. In the quest for new chiral materials, metallo-organic hybrids have been attractive candidates for exploiting the aforementioned scientific fields.
Mukaiyama, T.
Aldrichimica Acta, 29, 59-59 (1996)
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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