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  • Product Name:   (1R,2R)-(-)-1,2-Diaminocyclohexane
  • Synonyms:   (1R,2R)-(-)-1,2-CYCLOHEXANEDIAMINE;(1R,2R)-CYCLOHEXANE-1,2-DIAMINE;(1R,2R)-1,2-DIAMINOCYCLOHEXANE;(1R)-(-)-TRANS-1,2-DIAMINOCYCLOHEXANE;(1R)-TRANS-1,2-DIAMINOCYCLOHEXANE
  • CAS No.:   20439-47-8
  • Molecular Formula:   C6H14N2
  • Molecular Weight :   114.19
  • Specification :   98%
  • Place of Origin:   China
  • Appearance :   
  • Document :   Download

Description of (1R,2R)-(-)-1,2-Diaminocyclohexane
(1R,2R)-(-)-1,2-Diaminocyclohexane Chemical Properties
Melting point  41-45 °C
Boiling point  86-88°C 23mm
alpha  -24.5 º (c=5 1 N HCl 20 º 26.5 ºC)
density  0.931
refractive index  -25.5 ° (C=5, 1mol/L HCl)
Fp  169 °F
storage temp.  2-8°C
form  Crystalline Low Melting Solid
color  White to pale yellow
Water Solubility  Soluble in water.
Sensitive  Air Sensitive
BRN  4780911
InChIKey SSJXIUAHEKJCMH-PHDIDXHHSA-N
CAS DataBase Reference 20439-47-8(CAS DataBase Reference)
Safety Information
Hazard Codes  C
Risk Statements  34
Safety Statements  26-36/37/39-45
RIDADR  UN 3259 8/PG 2
WGK Germany  3
F  10-34
HazardClass  8
PackingGroup  III
HS Code  29213000
(1R,2R)-(-)-1,2-Diaminocyclohexane Usage And Synthesis
Chemical Properties white to light yellow crystal powder
Uses Can be used as a building block for chiral ligands.
Uses suzuki reaction
Purification Methods Distil or recrystallise the diamine from pet ether under N2 or Ar. Store it as above. The 1R,2R-base L-tartrate salt has M 264.3, m 2 7 3o and [ ] D +12.5o (c 4, H2O), and can be used to purfy and/or optically enrich the free base. [Beilstein 13 III 6, and references below.]
(1R,2R)-(-)-1,2-Diaminocyclohexane Preparation Products And Raw materials
Raw materials Acetic acid glacial-->Potassium hydroxide -->tert-Butyl methyl ether-->L(+)-Tartaric acid-->D-Tartaric acid-->3-Methylbenzoyl chloride-->(+/-)-trans-1,2-Diaminocyclohexane

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