| Identification | More | [Name]
(R)-(+)-2,2'-Diamino-1,1'-binaphthalene | [CAS]
18741-85-0 | [Synonyms]
(+/-)-1,1'-BINAPHTHALENE-2,2'-DIAMINE
1,1'-BINAPHTHYL-2,2'-DIAMINE
(+/-)-2,2'-DIAMINO-1,1'-BINAPHTHALENE
2,2-DIAMINO-1,1'-BINAPHTHALENE
(R)-(+)-1,1'-BI(2-NAPHTHYLAMINE)
R(+)-1,1'-BINAPHTHALENE-2,2'-DIAMINE
(R)-(+)-1,1'-BINAPHTHYL-2,2'-DIAMINE
(R)-(+)-2,2'-DIAMINO-1,1-BINAPHTHALENE
(R)-(+)-2,2-DIAMINO-1,1'-BINAPHTHALENE
R-(+)-2,2'-DIAMINO-1,1'-BINAPHTHALENE
(R)-(+)-2,2'-DIAMINO-1,1'-BINAPHTHYL
RACEMIC-2,2'-DIAMINO-1,1'-BINAPHTHYL
R(+)-DABN
(S)-(-)-1,1'-BI(2-NAPHTHYLAMINE)
S(-)-1,1'-BINAPHTHALENE-2,2'-DIAMINE
(S)-(-)-1,1'-BINAPHTHYL-2,2'-DIAMINE
(S)-(-)-2,2'-DIAMINO-1,1-BINAPHTHALENE
(S)-(-)-2,2-DIAMINO-1,1'-BINAPHTHALENE
S-(-)-2,2'-DIAMINO-1,1'-BINAPHTHALENE
(S)-(-)-2,2'-DIAMINO-1,1'-BINAPHTHYL | [EINECS(EC#)]
628-471-3 | [Molecular Formula]
C20H16N2 | [MDL Number]
MFCD00145204 | [Molecular Weight]
284.35 | [MOL File]
18741-85-0.mol |
| Chemical Properties | Back Directory | [Appearance]
off-white to brown powder | [Melting point ]
242-244 °C(lit.)
| [alpha ]
156 º (c=1, pyridine) | [Boiling point ]
416.85°C (rough estimate) | [density ]
1.0447 (rough estimate) | [refractive index ]
1.6450 (estimate) | [storage temp. ]
Keep in dark place,Sealed in dry,Room Temperature | [solubility ]
Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly) | [form ]
Powder | [pka]
3.79±0.10(Predicted) | [color ]
slightly beige
| [Optical Rotation]
[α]20/D +157°, c = 1 in pyridine | [Water Solubility ]
slightly soluble | [BRN ]
5279621 | [CAS DataBase Reference]
18741-85-0(CAS DataBase Reference) |
| Questions And Answer | Back Directory | [Synthesis]
(R)-(+)-2,2'-Diamino-1,1'-binaphthalene can be 1a , 2b, potassium carbonate, potassium iodide, dimethyl sulfoxide as a reaction solvent, then react with adding potassium hydroxide, and finally extract with ethyl acetate And get.
 |
| Safety Data | Back Directory | [Symbol(GHS) ]
GHS07 | [Signal word ]
Warning | [Hazard statements ]
H315-H319-H335 | [Precautionary statements ]
P261-P264-P271-P280-P302+P352-P305+P351+P338 | [Hazard Codes ]
Xn,Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S39:Wear eye/face protection .
S37/39:Wear suitable gloves and eye/face protection .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [RTECS ]
DU3090000
| [F ]
10 | [HS Code ]
29215900 |
| Hazard Information | Back Directory | [Physical properties]
(R)-(+)-2,2'-Diamino-1,1'-binaphthalene is a off-white to brown powder. | [Uses]
(R)-(+)-1,1'-Bi(2-naphthylamine) derivatives have been used for asymmetric hydrogenations, cyclopropanations and formation of chiral lactones. It can be used for the synthesis of sterically hindered binaphthalene-based monophosphane ligands. | [General Description]
(R)-(+)-1,1′-Binaphthyl-2,2′-diamine is an axially dissymmetric binaphthyl ligand mainly used in enantioselective catalysis. | [References]
[1] Patent: CN107814729, 2018, A. Location in patent: Paragraph 0170-0173; 0254-0257
[2] Organic and Biomolecular Chemistry, 2016, vol. 14, # 38, p. 9021 - 9032 |
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