Product

(1R,2R)-(-)-1,2-Diaminocyclohexane

CAS No.：20439-47-8

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(1R,2R)-(-)-1,2-Diaminocyclohexane Basic information

Product Name:	(1R,2R)-(-)-1,2-Diaminocyclohexane
Synonyms:	RR-DIAMINOCYCLOHEXANE;RR-DAC;(-)-(R,R)-DACH;(R,R)-DACH;(-)-(R,R)-1,2-DIAMINOCYCLOHEXANE;(1R,2R)-(-)-1,2-CYCLOHEXANEDIAMINE;(1R,2R)-CYCLOHEXANE-1,2-DIAMINE;(1R,2R)-(-)-1,2-DIAMINOCYCLOHEXANE
CAS:	20439-47-8
MF:	C6H14N2
MW:	114.19
EINECS:	606-556-6
Product Categories:	organic amine;Amines;API intermediates;Miscellaneous Reagents;Chiral Nitrogen;DACH&Trost Series;chiral;Chiral reagent;Amines (Chiral);Chiral Building Blocks;Synthetic Organic Chemistry;CHIRAL CHEMICALS;Chiral Compound;Cycloalkanes
Mol File:	20439-47-8.mol

(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.	Keep in dark place,Inert atmosphere,Room temperature
form	Crystalline Low Melting Solid
pka	10.76±0.70(Predicted)
color	White to pale yellow
optical activity	[α]20/D 25°, c = 5 in 1 M HCl
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

MSDS Information

Provider	Language
(1R,2R)-(-)-1,2-Diaminocyclohexane	English
SigmaAldrich	English
ACROS	English
ALFA	English

(1R,2R)-(-)-1,2-Diaminocyclohexane Usage And Synthesis

Chemical Properties	white to light yellow crystal powder
Uses	(1R,2R)-(-)-1,2-Diaminocyclohexane can be used as a building block for chiral ligands.
Uses	suzuki reaction
Uses	(1R,2R)-(-)-1,2-Diaminocyclohexane is a versatile ligand for the formation of metal complexes. Used in the synthesis of chiral tropocoronands which have potential utility in asymmetric catalysis.
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-->Potassium hydroxide-->tert-Butyl methyl ether-->L(+)-Tartaric acid-->D-Tartaric acid-->3-Methylbenzoyl chloride-->(+/-)-trans-1,2-Diaminocyclohexane-->2-Aminocyclohexanol-->cis-1,2-Diaminocyclohexane-->1,2-Diaminocyclohexane-->(1S,2S)-(+)-1,2-Diaminocyclohexane
Preparation Products	(1R,2R)-(+)-1,2-DIAMINOCYCLOHEXANE-N,N'-BIS(2-DIPHENYLPHOSPHINO-1-NAPHTHOYL)

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