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316393

Sigma-Aldrich

Sodium triacetoxyborohydride

97%

Synonym(s):

STAB

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About This Item

Linear Formula:
(CH3COO)3BHNa
CAS Number:
Molecular Weight:
211.94
Beilstein:
4047608
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

97%

reaction suitability

reagent type: reductant

mp

116-120 °C (dec.) (lit.)

SMILES string

[Na+].CC(=O)O[BH-](OC(C)=O)OC(C)=O

InChI

1S/C6H10BO6.Na/c1-4(8)11-7(12-5(2)9)13-6(3)10;/h7H,1-3H3;/q-1;+1

InChI key

HHYFEYBWNZJVFQ-UHFFFAOYSA-N

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General description

Sodium triacetoxyborohydride (NaBH(OAc)3) is particularly effective in reductive aminations due to its large scope, mildness, and selectivity. It is preferred to sodium cyanoborohydride(NaBH3CN) in many applications due to reduced toxicity of the side products formed, and better yields and reproducibility during synthesis.

Application

Sodium triacetoxyborohydride or [NaBH(OAc)3] can be used as a reagent:
  • In the reductive amination of ketones and aldehydes.
  • To prepare N-benzyl-γ-valerolactam by reacting with methyl 4-oxopentanoate and benzylamine via reductive amination/lactamization.
  • To reduce imines and enamines to corresponding amines.
  • To reduce quinolines and isoquinolines to corresponding tetrahydro derivatives.
  • In the hydroboration of alkenes.
  • To synthesize nitroxide biradicals for creating high relaxivity terminal groups linkage to dendrimers.
Applications using Sodium triacetoxyborohydride

related product

Product No.
Description
Pricing

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Sol. 1 - Repr. 1B - Water-react 1

Supplementary Hazards

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is Product 316393, Sodium triacetoxyborohydride, used for?

    Sodium triacetoxyborohydride (NaBH(OAc)3) is particularly effective in reductive aminations due to its large scope, mildness, and selectivity.

  4. Which is better to use, Product 316393, Sodium triacetoxyborohydride, or sodium cyanoborohydride?

    It is preferred to sodium cyanoborohydride (NaBH3CN) in many applications due to reduced toxicity of the side products formed, and better yields and reproducibility during synthesis. (See Chemfiles, vol 5, no. 9).   The reductive aminations of complex substrates also proceed smoothly using sodium triacetoxyborohydride.

  5. How else can Product 316393, Sodium triacetoxyborohydride, be used as a reducing agent?

    Recently, sodium triacetoxyborohydride was used to stereoselectively reduce    4-ketoprolines to the corresponding trans-hydroxy-proline in excellent yields.  By comparison, reduction of the 4-ketoproline esters failed to provide any product.

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  7. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

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Synlett, 537-537 (1990)
Ethan M McBride et al.
Forensic science international, 288, 278-282 (2018-05-23)
Impurity profiling has been used as a useful tool for analyzing nearly every drug class currently known on the illicit market. Impurities present within seized samples have the potential to determine source of origin, route of synthesis used, as well
Methods of enhancement of reactivity and selectivity of sodium borohydride for applications in organic synthesis
Periasamy M and Thirumalaikumar M
Journal of Organometallic Chemistry, 609(1-2), 137-151 (2000)
A review on the use of sodium triacetoxyborohydride in the reductive amination of ketones and aldehydes
Abdel-Magid AF and Mehrman SJ
Organic Process Research & Development, 10(5), 971-1031 (2006)
Use of Sodium Triacetoxyborohydride in Reductive Amination of Ketones and Aldehydes
Abdel-Magid et al.
ACS Symp. Ser., 641, 201-216 (1996)

Articles

Sodium triacetoxyborohydride

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