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417041

Sigma-Aldrich

S-Alpine-Borane®

97%

Synonym(s):

B-Isopinocampheyl-9-borabicyclo[3.3.1]nonane

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About This Item

Empirical Formula (Hill Notation):
C18H31B
CAS Number:
42371-63-1
Molecular Weight:
258.25
MDL number:
MFCD00082390
UNSPSC Code:
12352000
PubChem Substance ID:
24866117

Assay

97%

optical activity

[α]22/D +20°, c = 12 in THF

bp

>55 °C (lit.)

density

0.947 g/mL at 25 °C (lit.)

SMILES string

C[C@@H]1[C@H](CC2CC1C2(C)C)B3C4CCCC3CCC4

InChI

1S/C18H31B/c1-12-16-10-13(18(16,2)3)11-17(12)19-14-6-4-7-15(19)9-5-8-14/h12-17H,4-11H2,1-3H3/t12-,13+,14-,15+,16-,17-/m0/s1

InChI key

VCDGSBJCRYTLNU-NEXGVSGLSA-N

Related Categories

General description

S-Alpine-Borane® is a chiral reducing agent, synthesized from (-)-α-pinene via hydroboration.

Application

S-Alpine-Borane® may be used in the preparation of (-)-(4S)-5-methyl-2-hexyn-4-ol, an intermediate for the synthesis of (+)-Prelog-Djerassi lactonic aldehyde.

Legal Information

Alpine-Borane is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H250

Precautionary Statements

P222 - P231 - P422

Hazard Classifications

Pyr. Liq. 1

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Application of [2,3] sigmatropic (Wittig) rearrangements in synthesis. The synthesis of (+)-Prelog-Djerassi lactone.
Tsai DJS, and Midland MM.
Journal of the American Chemical Society, 107(13), 3915-3918 (1985)
Matteson DS
Stereodirected Synthesis with Organoboranes, 346-347 (2012)

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