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Chemical Name:
2-c][1;(R)-ME CBS;(R)-1-METH;3H-pyrrolo[1;2]oxazaborole;3-diphenyl-1H;(R)-1-METHYL,3,3-;(R)-Me-CBS Catalyst;-Methyl Oxazaborolidine;(R)-Tetrahydro-1-Methyl-3
Molecular Formula:
Formula Weight:
MOL File:

(R)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole Properties

Melting point:
85-95 °C(lit.)
Boiling point:
111 °C
0.95 g/mL at 25 °C
refractive index 
68 ° (C=1, MeOH)
Flash point:
40 °F
storage temp. 
Colorless to amber
optical activity
[α]22/D +76.8°, c = 1 in toluene
Water Solubility 
Not miscible or difficult to mix in water.
Air & Moisture Sensitive
CAS DataBase Reference
112022-83-0(CAS DataBase Reference)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  F,Xn,Xi
Risk Statements  11-38-48/20-63-65-67-36/37-19-40
Safety Statements  36/37-62-33-29-16-2-26
RIDADR  UN 1294 3/PG 2
WGK Germany  3
HazardClass  3
PackingGroup  II
HS Code  29319090
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H333 May be harmful if inhaled Acute toxicity,inhalation Category 5 P304+P312
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501
H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P281 Use personal protective equipment as required.
P331 Do NOT induce vomiting.
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P370+P378 In case of fire: Use … for extinction.
P405 Store locked up.
P403+P235 Store in a well-ventilated place. Keep cool.

(R)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 457698 (R)-(+)-2-Methyl-CBS-oxazaborolidine solution 1 M in toluene 112022-83-0 5ml $82.5 2018-11-13 Buy
Sigma-Aldrich 457698 (R)-(+)-2-Methyl-CBS-oxazaborolidine solution 1 M in toluene 112022-83-0 25ml $326 2018-11-13 Buy
TCI Chemical D2130 (R)-5,5-Diphenyl-2-methyl-3,4-propano-1,3,2-oxazaborolidine >97.0%(T) 112022-83-0 1g $29 2018-11-22 Buy
TCI Chemical D2130 (R)-5,5-Diphenyl-2-methyl-3,4-propano-1,3,2-oxazaborolidine >97.0%(T) 112022-83-0 5g $87 2018-11-22 Buy
Alfa Aesar L09230 (R)-2-Methyl-CBS-oxazaborolidine monohydrate, 94% 112022-83-0 1g $97.2 2018-11-13 Buy

(R)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole Chemical Properties,Uses,Production


  1. Convenient catalyst for the enantioselective borane reduction of ketones at ambient temperatures.
  2. Asymmetric synthesis of α-chiral hydroxyalkylphosphines via a catalytic, enantioselective reduction of acylphosphines.
  3. Nickel-catalyzed cross-couplings of benzylic pivalates with arylboroxines: Stereospecific formation of diarylalkanes and triarylmethanes.
  4. Enantioselective reduction of prochiral ketones with NaBH4/Me2SO4/(S)-Me-CBS. 

Chemical Properties

white to light yellow crystal powde


suzuki reaction

(R)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole Preparation Products And Raw materials

Raw materials

Preparation Products

(R)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole Suppliers

Global( 192)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 China 19953 60
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 22049 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20786 55
Mainchem Co., Ltd.
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Nanjing ChemLin Chemical Industry Co., Ltd.
025-83697070; CHINA 3015 60
Shanghai Yingrui Biopharma Co., Ltd.
+86-21-34979012 CHINA 663 60
Nanjing Finetech Chemical Co., Ltd.
025-85710122 17714198479
025-85710122 CHINA 894 55
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Chemwill Asia Co.,Ltd.
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Kono Chem Co., Ltd
+86-132 8924 6953 CHINA 2164 58

View Lastest Price from (R)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-15 (R)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole
US $1.00 / KG 1G 98% 100KG career henan chemical co
2018-03-06 (R)-3,3-Diphenyl-1-methylpyrrolidino[1,2-c]-1,3,2-oxazaborole
US $1.00 / KG 1KG 99% 100t Shanghai Yingrui Biopharma Co., Ltd.

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