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Sigma-Aldrich

Borane tetrahydrofuran complex solution

1.0 M in THF

Synonym(s):

Borane-THF (1:1), Boron hydride (BH3)-THF (1:1), Tetrahydrofuran-trihydroborane complex, Trihydrido(tetrahydrofuran)boron

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About This Item

Linear Formula:
BH3OC4H8
CAS Number:
14044-65-6
Molecular Weight:
85.94
Beilstein:
3668402
MDL number:
MFCD00012429
UNSPSC Code:
12352005
PubChem Substance ID:
24850560
NACRES:
NA.22
Pricing and availability is not currently available.

contains

<0.005 M sodium borohydride as stabilizer

Quality Level

200

reaction suitability

reagent type: reductant

concentration

1.0 M in THF

density

0.898 g/mL at 25 °C

functional group

ether

storage temp.

2-8°C

SMILES string

B.C1CCOC1

InChI

1S/C4H8O.BH3/c1-2-4-5-3-1;/h1-4H2;1H3

InChI key

RMCYTHFAWCWRFA-UHFFFAOYSA-N

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General description

Borane tetrahydrofuran complex (BH3-THF) is widely used as a reducing agent in organic synthesis. It is also used as a reagent in hydroboration reactions.[1][2]

Application

New, Safer, NIMBA-Stabilized BH3 THF Solutions
BH3-THF can be used as a reducing agent for the reduction of various functional groups such as carboxylic acids, aldehydes, ketones, esters, acid chlorides, nitriles, epoxides, amides, lactones, oximes, and imines into corresponding alcohols and amines. Grignard reagents, arylmercury, arylthalium, and allyl and propargyllithium compounds react with BH3−THF to give organoboranes, which can be oxidized to the corresponding alcohols, phenols, and 1,3-diols.[1][2][3]
It can also be used:
  • To synthesize the chiral borane catalyst, which is used in the enantioselective halo-aldol reaction.[1]
  • To prepare 9-unsubstituted acridines by reduction of corresponding acridones.[2]
  • To reduce nylon surface amide groups to secondary amines.[3]

Packaging

The 25 mL Sure/Seal™ bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

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Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - STOT SE 3 - Water-react 1

Target Organs

Central nervous system, Respiratory system

Supplementary Hazards

EUH019

Storage Class Code

4.3 - Hazardous materials which set free flammable gases upon contact with water

WGK

WGK 2

Flash Point(F)

1.4 °F - closed cup

Flash Point(C)

-17 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
STBL2711
SHBQ6254
SHBR8188
SHBR7507
SHBP9809

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Borane-Tetrahydrofuran
Zaidlewicz M, et al.
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
Simple and convenient conversion of acridones into 9-unsubstituted acridines via acridanes using borane tetrahydrofuran complex
Desbois N, et al.
Tetrahedron Letters, 50(49), 6894-6896 (2009)
Nylon surface modification. Part 1. Targeting the amide groups for selective introduction of reactive functionalities
Jia X, et al.
Polymer, 47(14), 4916-4924 (2006)
Polymer, 47, 4916-4916 (2006)
Jung Seok Lee et al.
Macromolecular bioscience, 15(9), 1314-1322 (2015-06-04)
We designed poly(β-amino esters) (PBAEs) bearing both UV light- and pH-sensitive groups and used PBAEs to prepare nanoparticles (NPs) that can be utilized for on-demand burst release of guest molecules in response to multiple triggers. Due to the presence of

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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