(R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol
- Product Name
- (R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol
- CAS No.
- 22348-32-9
- Chemical Name
- (R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol
- Synonyms
- RDPP;(R)-DIPHENYL(PYRROLIDIN-2-YL)METHANOL;(R)-DIPHENYLPROLINOL;PYRROLIDINEMETHANOL;idinemethanoL;(R)-(+)-2-(Diphenylh;(R)-(+)-α,α-DiphenyL;Nebivolol Impurity 48;(R)-1-DIPHENYL-PROLINOL;A,A-DIPHENYL-D-PROLINOL
- CBNumber
- CB1101689
- Molecular Formula
- C17H19NO
- Formula Weight
- 253.35
- MOL File
- 22348-32-9.mol
(R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol Property
- Melting point:
- 77-80 °C
- alpha
- 59 º (589nm, c=3, MeOH 25 ºC)
- Boiling point:
- 396.54°C (rough estimate)
- Density
- 1.0078 (rough estimate)
- refractive index
- 58 ° (C=2, MeOH)
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- solubility
- almost transparency in Chloroform
- form
- solid
- pka
- 13.15±0.29(Predicted)
- color
- white to off-white
- optical activity
- [α]20/D +69°, c = 3 in chloroform
- BRN
- 4353363
- InChIKey
- OGCGXUGBDJGFFY-MRXNPFEDSA-N
- CAS DataBase Reference
- 22348-32-9(CAS DataBase Reference)
- NIST Chemistry Reference
- (R)-alpha-(2-pyrrolidinyl)benzhydryl alcohol(22348-32-9)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36-37/39
- WGK Germany
- 3
- F
- 10-34
- TSCA
- No
- HS Code
- 29221990
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
- 382337
- Product name
- (R)-(+)-α,α-Diphenyl-2-pyrrolidinemethanol
- Purity
- 98%
- Packaging
- 1g
- Price
- $153.6
- Updated
- 2024/03/01
- Product number
- 382337
- Product name
- (R)-(+)-α,α-Diphenyl-2-pyrrolidinemethanol
- Purity
- 98%
- Packaging
- 5g
- Price
- $208
- Updated
- 2024/03/01
- Product number
- D2365
- Product name
- (R)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol
- Purity
- >98.0%(GC)(T)
- Packaging
- 1g
- Price
- $131
- Updated
- 2024/03/01
- Product number
- D2365
- Product name
- (R)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol
- Purity
- >98.0%(GC)(T)
- Packaging
- 5g
- Price
- $453
- Updated
- 2024/03/01
- Product number
- L09218
- Product name
- (R)-(+)-alpha,alpha-Diphenylprolinol
- Purity
- 99%
- Packaging
- 1g
- Price
- $148
- Updated
- 2023/06/20
(R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol Chemical Properties,Usage,Production
Chemical Properties
white to faintly yellow crystalline powder
Uses
suzuki reaction
Uses
Used to prepare the corresponding oxazaborolidines for the borane-mediated asymmetric reduction of ketones.
Definition
ChEBI: (r)-alpha,alpha-diphenyl-2-pyrrolidinemethanol is a diarylmethane.
Synthesis
Draw 14 kg of tetrahydrofuran into the reaction kettle. 61.5 kg of a 34% strength solution of phenylmagnesium chloride in tetrahydrofuran was added to the reaction vessel to initiate agitation and cooling cycles. The control temperature is 10 to 60 °C. The dropping time was controlled for 5 to 6 hours, and stirring was continued for 1 hour. Pump 24 kg of concentrated hydrochloric acid (mass concentration 36%) into the matching drip tank of the reaction kettle. constantly dropping, the dropping time is controlled for 1 hour, and the dropping process control temperature does not exceed 45 ° C. After the addition was completed, stirring was continued for 8 hours.Cool down to -5 ° C ~ 5 ° C to obtain (R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol, a total of 17.2 kg, yield 85%.
(R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol Preparation Products And Raw materials
Raw materials
Preparation Products
(R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol Suppliers
- Tel
- Country
- China Hong Kong
- ProdList
- 878
- Advantage
- 55
View Lastest Price from (R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol manufacturers
- Product
- (R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol 22348-32-9
- Price
- US $32.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 5000kg/week
- Release date
- 2024-05-15
- Product
- (R)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol 22348-32-9
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 500000kg
- Release date
- 2024-10-29
- Product
- (R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol 22348-32-9
- Price
- US $9.00/KG
- Min. Order
- 1KG
- Purity
- 99.9
- Supply Ability
- 1 ton
- Release date
- 2024-08-19