(R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol
- CAS No.
- 22348-32-9
- Chemical Name:
- (R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol
- Synonyms
- (R)-DIPHENYL(PYRROLIDIN-2-YL)METHANOL;RDPP;(R)-DIPHENYLPROLINOL;PYRROLIDINEMETHANOL;diphenyl-[(2R)-pyrrolidin-2-yl]methanol;(R)-(+)-2-(DIPHENYLHYDROXYMETHYL)PYRROLIDINE;(R)-(+)-ALPHA,ALPHA-DIPHENYL-2-PYRROLIDINEMETHANOL;(R)-D2PM;idinemethanoL;(R)-(+)-2-(Diphenylh
- CBNumber:
- CB1101689
- Molecular Formula:
- C17H19NO
- Molecular Weight:
- 253.35
- MDL Number:
- MFCD00077754
- MOL File:
- 22348-32-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| 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 |
| InChI | 1S/C17H19NO/c19-17(16-12-7-13-18-16,14-8-3-1-4-9-14)15-10-5-2-6-11-15/h1-6,8-11,16,18-19H,7,12-13H2/t16-/m1/s1 |
| InChIKey | OGCGXUGBDJGFFY-MRXNPFEDSA-N |
| SMILES | OC([C@H]1CCCN1)(c2ccccc2)c3ccccc3 |
| CAS DataBase Reference | 22348-32-9(CAS DataBase Reference) |
| FDA UNII | D56JS74WW2 |
| NIST Chemistry Reference | (R)-alpha-(2-pyrrolidinyl)benzhydryl alcohol(22348-32-9) |
| UNSPSC Code | 12352005 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| 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 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
(R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol price More Price(68)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 382337 | (R)-(+)-α,α-Diphenyl-2-pyrrolidinemethanol 98% | 22348-32-9 | 1g | $422 | 2026-04-30 | Buy |
| Sigma-Aldrich | 382337 | (R)-(+)-α,α-Diphenyl-2-pyrrolidinemethanol 98% | 22348-32-9 | 5g | $571 | 2026-04-30 | Buy |
| TCI Chemical | D2365 | (R)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol >98.0%(GC)(T) | 22348-32-9 | 1g | $94 | 2026-04-30 | Buy |
| TCI Chemical | D2365 | (R)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol >98.0%(GC)(T) | 22348-32-9 | 5g | $326 | 2026-04-30 | Buy |
| Usbiological | 273968 | (R)-(+)-Diphenyl-2-pyrrolidinemethanol Asreported | 22348-32-9 | 2g | $333 | 2026-06-03 | Buy |
(R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol Chemical Properties, Uses, 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
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Forxine Pharmaceutical Co., Ltd. | 21-21-64961388 18918697718 | service@forxine.com | China | 65 | 60 |
| China Synchem Technology Co.,Ltd. | +86-0552-4929304 +86-18055277008 | sales@cnsynchem.com | China | 55 | 65 |
| Viwit Pharmaceutical Co., Ltd. | 0632-0632-2980981 15063270987 | service.china3@viwit.com | China | 121 | 55 |
| Hubei Xinkang Pharmaceutical Chemical Co., Ltd | 027-027-59308705 18871579363 | 1248680011@qq.com | China | 9279 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| INTATRADE GmbH | +49 3493/605464 | sales@intatrade.de | Germany | 3563 | 66 |
| JIANGXI AIFEIMU TECHNOLOGY CO.,LTD | 793-33899567 13735087952 | sales@afmpharm.com | China | 51 | 61 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
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- Oct 22,2024
View Latest Price from (R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-09-16 | (R)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol
22348-32-9
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
![]() |
2025-09-23 | 2,2-diphenyl-(2R)-2-pyrrolidinemethanol
22348-32-9
|
10kg | 99%min | 1 tons | Hangzhou Verychem Science And Technology Co.Ltd | ||
![]() |
2025-06-27 | (R)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol
22348-32-9
|
1KG | 99% | 500000kg | Hebei Chuanghai Biotechnology Co., Ltd |
-

- (R)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol
22348-32-9
- 0.99
- RongNa Biotechnology Co.,Ltd
-

- 2,2-diphenyl-(2R)-2-pyrrolidinemethanol
22348-32-9
- 99%min
- Hangzhou Verychem Science And Technology Co.Ltd
-

- (R)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol
22348-32-9
- $0.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
(R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol Spectrum
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