Skip to Content
Merck
CN

Key Documents

View All Documentation

457701

(S)-(−)-2-Methyl-CBS-oxazaborolidine solution

1 M in toluene

Synonym(s):

α,α-Diphenyl-L-prolinol methylboronic acid cycl-amide ester, (S)-1-Methyl-3,3-diphenyl-tetrahydro-pyrrolo[1,2c][1,3,2]oxazaborole, (S)-3,3-Diphenyl-1-methyltetrahydro-3H-pyrrolo[1,2-c][1,3,2]oxazaborole, (S)-Tetrahydro-1-methyl-3,3-diphenyl-1H,3H-pyrrolo[1,2-c][1,3,2]oxazaborole

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
C18H20BNO
CAS Number:
112022-81-8
Molecular Weight:
277.17
NACRES:
NA.22
PubChem Substance ID:
24869386
UNSPSC Code:
12352005
MDL number:
MFCD00078439
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

reaction suitability

reagent type: chrial catalyst

Quality Segment

concentration

1 M in toluene

bp

111 °C

density

0.929 g/mL at 25 °C

functional group

phenyl

storage temp.

room temp

SMILES string

CB1OC([C@@H]2CCCN12)(c3ccccc3)c4ccccc4

InChI

1S/C18H20BNO/c1-19-20-14-8-13-17(20)18(21-19,15-9-4-2-5-10-15)16-11-6-3-7-12-16/h2-7,9-12,17H,8,13-14H2,1H3/t17-/m0/s1

InChI key

VMKAFJQFKBASMU-KRWDZBQOSA-N

Application

Catalyst employed in an enantioselective synthesis of (S)-2-amino-1-phenylethanol.
(S)-(-)-2-Methyl-CBS-oxazaborolidine solution [1M in toluene] may be used as a catalyst in the multi-step synthesis of (-)-diospongin A.
It may also be used in the preparation of:
  • (1S)-2-azido-1-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)ethanol
  • (R)-α-deuteriobenzyl alcohol
  • (R)-2-(1-hydroxyethyl)benzo[b]thiophene
The CBS (Corey-Bakshi-Shibata) oxazaborolidine catalyst has been used in the asymmetric reduction of prochiral ketones. Other applications include the enantioselective synthesis of α-hydroxy acids, α-amino acids, C2-symmetrical ferrocenyl diols, and propargyl alcohols.
Excellent catalyst for asymmetric reductions.
CBS Catalysts for Asymmetric Reduction and Asymmetric Synthesis

Other Notes

Precipitate may form in storage, but does not affect product quality. Gently heat product to 80-90 °C under an inert atmosphere to redissolve solids.

Still not finding the right product?

Explore all of our products under (S)-(−)-2-Methyl-CBS-oxazaborolidine solution

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 2 - STOT SE 3

Target Organs

Central nervous system

Storage Class

3 - Flammable liquids

WGK

WGK 3

Flash Point (°F)

39.2 °F - closed cup

Flash Point (°C)

4 °C - closed cup

PPE (personal protective equipment)

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library