(1R,2R)-(-)-N-p-Tosyl-1,2-diphenylethylenediamine
- Product Name
- (1R,2R)-(-)-N-p-Tosyl-1,2-diphenylethylenediamine
- CAS No.
- 144222-34-4
- Chemical Name
- (1R,2R)-(-)-N-p-Tosyl-1,2-diphenylethylenediamine
- Synonyms
- R-TS-DPEN;(R,R)-TSDPEN;(1R,2R)-TSDPE;(1R,2R)-TSDPEN;TIANFU-CHEM (R,R)-TsDPEN;(R,R)-TsDPEN (1R,2R)-(-)-N-;(1R,2R)-N-p-Toluenesulfonyl-1,2-diphe;(1R,2R)-(-)-N-(4-Toluenesulfonyl)-1,2-;(1R,2R)-N-P-TOSYL-1,2-DIPHENYLETHYLENE-D;(1R, 2R)-(-)-N-(4-Toluene sulfonyl)-DPEN
- CBNumber
- CB1180813
- Molecular Formula
- C21H22N2O2S
- Formula Weight
- 366.48
- MOL File
- 144222-34-4.mol
(1R,2R)-(-)-N-p-Tosyl-1,2-diphenylethylenediamine Property
- Melting point:
- 128-131 °C(lit.)
- alpha
- -61.5 º (c=1, CH2Cl2)
- Boiling point:
- 537.3±60.0 °C(Predicted)
- Density
- 1.1440 (rough estimate)
- refractive index
- -30 ° (C=0.4, CHCl3)
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- solubility
- Chloroform, Methanol
- pka
- 10.76±0.50(Predicted)
- form
- Crystals or Crystalline Powder
- color
- White to slightly yellow
- optical activity
- [α]20/D 35°, c = 1 in chloroform
- Water Solubility
- insoluble
- InChI
- InChI=1S/C21H22N2O2S/c1-16-12-14-19(15-13-16)26(24,25)23-21(18-10-6-3-7-11-18)20(22)17-8-4-2-5-9-17/h2-15,20-21,23H,22H2,1H3/t20-,21-/m1/s1
- InChIKey
- UOPFIWYXBIHPIP-NHCUHLMSSA-N
- SMILES
- C1(S(N[C@H](C2=CC=CC=C2)[C@H](N)C2=CC=CC=C2)(=O)=O)=CC=C(C)C=C1
- CAS DataBase Reference
- 144222-34-4(CAS DataBase Reference)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 484334
- Product name
- (1R,2R)-(?)-N-p-Tosyl-1,2-diphenylethylenediamine
- Purity
- 98%
- Packaging
- 1g
- Price
- $97.3
- Updated
- 2025/07/31
- Product number
- A1548
- Product name
- (R,R)-N-(2-Amino-1,2-diphenylethyl)-p-toluenesulfonamide
- Purity
- >98.0%(T)
- Packaging
- 1g
- Price
- $87
- Updated
- 2025/07/31
- Product number
- 07-2371
- Product name
- (1R,2R)-(-)-N-(4-toluenesulfonyl)-1,2-diphenylethylenediamine, 98% (R,R)-TsDPEN
- Packaging
- 500mg
- Price
- $61
- Updated
- 2024/03/01
- Product number
- 07-2371
- Product name
- (1R,2R)-(-)-N-(4-toluenesulfonyl)-1,2-diphenylethylenediamine, 98% (R,R)-TsDPEN
- Packaging
- 2g
- Price
- $119
- Updated
- 2024/03/01
- Product number
- 07-2371
- Product name
- (1R,2R)-(-)-N-(4-toluenesulfonyl)-1,2-diphenylethylenediamine, 98% (R,R)-TsDPEN
- Packaging
- 10g
- Price
- $414
- Updated
- 2024/03/01
(1R,2R)-(-)-N-p-Tosyl-1,2-diphenylethylenediamine Chemical Properties,Usage,Production
Chemical Properties
white to slightly yellow crystals or crystalline
Uses
Chiral diamine ligand for cooperative metal-Bronsted acid catalyzed greener reductive amination using hydrogen gas.
Metal-Br?nsted Acid Cooperative Catalysis for Asymmetric Reductive Amination
Uses
(1R,2R)-(-)-N-p-Tosyl-1,2-diphenylethylenediamine is used as a catalyst in stereoselective preparation of aromatic ketone derivatives as well as other chiral organic compounds.
General Description
This product has been enhanced for catalytic efficiency.
Synthesis
35132-20-8
98-59-9
144222-34-4
(1) (R,R)-1,2-diphenylethylenediamine (20 mmol) was dissolved in dichloromethane (30 mL) and cooled to 0°C in an ice bath. A solution of p-toluenesulfonyl chloride (20 mmol) dissolved in dichloromethane (30 mL) was slowly added dropwise to the above solution at 0 °C (dropwise time 30 min). After the dropwise addition was completed, the reaction was continued at 0°C for 1 hour. After completion of the reaction, the solvent was removed by concentration under reduced pressure by rotary evaporator to obtain the crude product. The crude product was purified by column chromatography (eluent: dichloromethane/methanol=10:1, v/v) to afford the target product (R,R)-(-)-N-(p-toluenesulfonyl)-1,2-diphenylethylenediamine (15 mmol) in 75% yield.
References
[1] Tetrahedron Letters, 2008, vol. 49, # 27, p. 4289 - 4291
[2] European Journal of Organic Chemistry, 2000, # 12, p. 2247 - 2252
[3] Tetrahedron Asymmetry, 2009, vol. 20, # 6-8, p. 910 - 920
[4] Molecules, 2010, vol. 15, # 4, p. 2551 - 2563
[5] Patent: CN107286089, 2017, A. Location in patent: Paragraph 0078; 0148-0149
(1R,2R)-(-)-N-p-Tosyl-1,2-diphenylethylenediamine Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from (1R,2R)-(-)-N-p-Tosyl-1,2-diphenylethylenediamine manufacturers
- Product
- (1R,2R)-(-)-N-p-Tosyl-1,2-diphenylethylenediamine 144222-34-4
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 1Ton
- Release date
- 2022-09-19
- Product
- (r,r)-tsdpen 144222-34-4
- Price
- US $0.00-0.00/Kg
- Min. Order
- 1Kg
- Purity
- 99.9%
- Supply Ability
- 200tons
- Release date
- 2024-04-08
- Product
- (R,R)-N-(p-Toluenesulfonyl)-1,2-diphenylethylenediamine 144222-34-4
- Price
- US $50.00-1.00/kg
- Min. Order
- 1kg
- Purity
- 99
- Supply Ability
- g-kg-tons,free sample is available
- Release date
- 2024-01-03