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Sigma-Aldrich

Boron triiodide

95%

Synonym(s):

Boron iodide (BI3), Triiodoborane

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About This Item

Empirical Formula (Hill Notation):
BI3
CAS Number:
Molecular Weight:
391.52
EC Number:
MDL number:
UNSPSC Code:
12352101
PubChem Substance ID:
NACRES:
NA.22

Pricing and availability is not currently available.

Quality Level

Assay

95%

form

solid

density

3.35 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

IB(I)I

InChI

1S/BI3/c2-1(3)4

InChI key

YMEKEHSRPZAOGO-UHFFFAOYSA-N

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This Item
89933CRM49412CRM04728
product line

TraceCERT®

product line

TraceCERT®

product line

TraceCERT®

product line

TraceCERT®

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

manufacturer/tradename

Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

manufacturer/tradename

Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

manufacturer/tradename

Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

manufacturer/tradename

Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

Quality Level

300

Quality Level

300

Quality Level

300

Quality Level

300

General description

Boron triiodide is a strong Lewis acid. It can be prepared by treating iodine (I2) with potassium borohydride (KBH4) in heptane.[1]

Application

Boron triiodide can be used as a reagent to cleave C-O bonds in ethers, esters, and alcohols. It can also be used to cleave silanes and halides. Boron triiodide converts alcohols to alkyl iodides; sulfonyl and sulfinyl to disulfides. Borylation of triarylamines can be achievd using this reagent.[1][2]
It can also be used to prepare imidazole based imino aluminum dihalide metal complexes [3] and boron carbonitride (BCN) nanowires.[4]

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive 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

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    Boron Triiodide
    Ronald R and Karatholuvhu MS
    Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
    Synthesis, characterization and reactivity of an imidazolin-2-iminato aluminium dihydride
    Franz D, et al.
    Dalton Transactions, 43(11), 4451-4461 (2014)
    Multiple Electrophilic C-H Borylation of Arenes Using Boron Triiodide
    Oda S, et al.
    Organic Letters, 22(2), 700-704 (2020)
    Synthesis and growth mechanism of BCN nanowires
    Yin Y and Chen Y
    Materials Letters, 65(15-16), 2476-2478 (2011)
    Susumu Oda et al.
    Organic letters, 22(2), 700-704 (2020-01-08)
    Electrophilic C-H borylation of arenes using boron triiodide has been developed. This reaction proceeded smoothly in the absence of additives, and the diiodoboryl group was installed at the most sterically accessible carbon, where the HOMO is localized to a certain

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