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(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
Last updated:2026-05-27 23:02:37

(R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol Properties

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)  Exclamation Mark (GHS07)
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
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
1
2 0

(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
Product number Packaging Price Buy
382337 1g $422 Buy
382337 5g $571 Buy
D2365 1g $94 Buy
D2365 5g $326 Buy
273968 2g $333 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%.

137496-68-5
22348-32-9
Synthesis of (R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol from 1-Pyrrolidinecarboxylic acid, 2-(hydroxydiphenylmethyl)-,1,1-dimethylethyl ester, (2R)-

(R)-(+)-a,a-Diphenyl-2-pyrrolidinemethanol Preparation Products And Raw materials

Global Suppliers ( 511)
Supplier Tel Email 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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2-PYRROLIDINEMETHANOL, A,A-DIPHENYL- 2-Pyrrolidinemethanol, α,α-diphenyl-, (2R)- (2R)-α,α-diphenyl-2-Pyrrolidinemethanol (R)-1-DIPHENYL-PROLINOL (R)-(+)-2-(DIPHENYLHYDROXYMETHYL)-PYRROLIDIN (R)-2-(DIPHENYLHYDROXYMETHYL)PYRROLIDINE (R)-(+)-ɑ,ɑ-Diphenylprolinol, 99% ALPHA,ALPHA-DIPHENYL-D-PROLINOL A,A-DIPHENYL-D-PROLINOL alpha,alpha-diphenyl-2-pyrrolidinemethanol (R)-α,α-Diphenyl-2-pyrrolidinemethanol, (R)-2-(Diphenylhydroxymethyl)pyrrolidine α,α-Diphenyl-D-prolinol, (R)-2-(Diphenylhydroxymethyl)pyrrolidine (R)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol,98% (R)-(+)-α,α-Diphenyl-2-pyrrolidinemethanol ,98% α,α-Diphenyl-D-prolinol,(R)-α,α-Diphenyl-2-pyrrolidinemethanol, (R)-2-(Diphenylhydroxymethyl)pyrrolidine (R)-(+)-α,α-Diphenyl-2-pyrrolidinemethanol,α,α-Diphenyl-D-prolinol, (R)-2-(Diphenylhydroxymethyl)pyrrolidine (2R)-(+)-2-[Hydroxy(diphenyl)methyl]pyrrolidine (R)-(+)-2-(Diphenylh alpha-Diphenyl-2-pyrrolidineMethanol Diphenyl[(2R)-(+)-pyrrolidin-2-yl]methanol, (R)-(+)-alpha,alpha-Diphenylprolinol alpha,alpha-Diphenyl-D-prolinol (R)-(+)-2-(Diphenylhydroxymethyl)pyrrolidine -(+)-2-(DiphenylhydroxyMethyl)pyrrolidine (R)-(+)-α,α-DiphenyL idinemethanoL R(+)-A,A-DIPHENYLPROLINOL R-(+)-ALFA,ALFA-DIPHENYL-2-PYRROLIDINE METHANOL (R)-ALPHA,ALPHA-DIPHENYL-2-PYRROLIDINEMETHANOL (R)-(+)-ALPHA,ALPHA-DIPHENYL-(2-PYRROLIDINYL)-METHANOL (R)-(+)-ALPHA,ALPHA-DIPHENYLPROLINOL (R)-(+)-DIPHENYL-2-PYRROLIDINEMETHANOL (R)-(+)-DIPHENYLPYRROLIDINEMETHANOL ?-DIPHENYL(PYRROLIDIN-2-YL)METHANOL (R)-(+)-A,A-DIPHENYL-2-PYRROLIDINEMETHANOL (r)-(+)-à,à-diphenyl-2-pyrrolidinemethanol (r)-(+)-à,à-diphenylprolinol α,α-diphenyl-d-prolinol 2,2-DIPHENYL-(2R)-2-PYRROLIDINEMETHANOL PYRROLIDINEMETHANOL (R)-(+)-alpha,alpha-diphenyl-2-pyrrolidine (R)-(+)-ALPHA,ALPHA-DIPHENYL-2-PRRROLIDINE METHANOL 99.0+% (+)-Diphenyl[(2R)-pyrrolidin-2-yl]methanol, (+)-alpha,alpha-Diphenyl-D-prolinol (R)-(+)- alpha,alpha-Diphenyl-2-yrrolidine Methanol -DIPHENYL(PYRROLIDIN-2-YL)METHANOL (R)-(+)-alpha,alpha-Diphenyl-2-Pymolidinemethanol (R)-(+)-α,α-Diphenyl-2-pyrrolidineMethanol 98% 2-PyrrolidineMethanol,a,a-diphenyl-, (2R)- (R)-(+)-2-(Diphenylhydroxymethyl)pyrrolidine alpha,alpha-Diphenyl-D-prolinol 2-Pyrrolidinemethanol, .alpha.,.alpha.-diphenyl-, (2R)- (R)-(+)-α,α-Diphenyl-2-pyrrolidinemethanol (R)-(+)-alpha,alpha-Diphenyl-2-pyrrolidinemethanol 98% (R)-(+)-α,α-Diphenyl-2-pyrrolidinemethanol, >=99% (R)-(+)-α,α-Diphenyl-2-pyrrolidinemethanol> (R)-(+)-a,a-2-Pyrrolidinemethanol R-(+)-α,α-Diphenylprolinol (R)-(+)-α,α-Diphenyl-2-pyrrolidinemethanol (R)-(+)- α,α-2-pyrrolidinemethanol iphenyl-[(2R)-pyrrolidin-2-yl]methanol (R)-1,1-Diphenylprolinol