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Bis(pinacolato)diborane

Bis(pinacolato)diborane structure

CAS No:
73183-34-3
Formula:
C12H24B2O4
Chemical Name:
Bis(pinacolato)diborane
Synonyms:
2,2′-Bi-1,3,2-dioxaborolane,4,4,4′,4′,5,5,5′,5′-octamethyl-;1,3,2-Dioxaborolane,bimol. deriv.;4,4,4′,4′,5,5,5′,5′-Octamethyl-2,2′-bi-1,3,2-dioxaborolane;Bis(pinacolato)diborane;B2Pin2;Bis(pinacolato)diborane(4);4,4,5,5,4′,4′,5′,5′-Octamethyl-[2,2′]bi[[1,3,2]dioxaborolanyl];Diboron pinacol ester;Pinacol diborane;4,4,5,5-Tetramethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane;2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;4,4,4′,4′,5,5,5′,5′-Octamethyl-2,2′-bi-1,3,2-dioxaborolan;Bis(pinacolate)diboron;Bis(pinacolato) diborate;4,4′,5,5′-Octamethyl-2,2′-bi-1,3,2-dioxaborolane;Dipinacoldiboron;4,4,4′,4′,5,5,5′,5′-Octamethyl-2,2′-bis(1,3,2-dioxaborolane);4,4,5,5,4′,4′,5′,5′-Octamethyl-2,2′-bis(1,3,2-dioxaborolane);Bis-pinacoldiboron;4,4,5,5-Tetramethyl-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane;Bis(4,4,5,5-tetramethyl-[1,3]dioxolan-2-yl)borane;4,4,4′,4′,5,5,5′,5′-Octamethyl-2,2′-bi-1,3,2-dioxaborolane [B2(pin)2];4,4,5,5-Tetramethyl-1,3,2-dioxaborane;4,4,5,5,4′,4′,5′,5′-octamethyl-2,2′-bi(1,3,2-dioxaborolane);Bis(pinanolato)diboron;4,4,5,5-Tetramethyl-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolan;Octamethyl-2,2′-bi(1,3,2-dioxaborolane);4,4,4′,4′,5,5,5′,5′-Octamethyl-2,2′-bi(1,3,2-dioxaborolane);1106313-74-9
Categories:
Chemical Reagents > Organic Reagents

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Description

Bis(pinacolato)diboron is a white crystal powder, It is commonly used coupling reagent.

Bis(pinacolato)diborane Basic Attributes

Molecular Weight：

253.94

Exact Mass：

253.94

BRN：

7703552

EC Number：

-0

UNII：

I906W26P4U

DSSTox ID：

DTXSID30369935

HScode：

2934999090

Characteristics

PSA：

36.9

XLogP3：

2.24920

Appearance：

White Powder or Platelets

Density：

1.0±0.1 g/cm3

Melting Point：

115-117 °C @ Solvent: Hexane

Boiling Point：

222.6°C at 760 mmHg

Flash Point：

88.4±18.2 °C

Refractive Index：

1.432

Water Solubility：

soluble in tetrahydrofuran, dichloromethane, toluene, hexane and heptane. Insoluble in water.

Storage Conditions：

0-6°C

Safety Information

Hazard category：

IRRITANT, IRRITANT-HARMFUL, KEEP COLD

wgk germany：

hazard class code：

36/37/38-20/21/22

safety instructions：

26-37/39-36-24/25

Marks：

Xi,Xn

Hazard note：

Irritant

Precautionary statement(s)：

P260, P261, P264, P270, P271, P272, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P312, P321, P330, P332+P313, P333+P313, P337+P313, P362, P363, P403+P233, P405, P501

Hazard Statements：

H302

GHS Classification：

|Danger|H302 (53.49%): Harmful if swallowed [Warning Acute toxicity, oral]|P201, P202, P260, P261, P264, P270, P271, P272, P280, P281, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P308+P313, P310, P312, P321, P330, P332+P313, P333+P313, P337+P313, P362, P363, P403+P233, P405, and P501|Aggregated GHS information provided by 138 companies from 13 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH Entry Terms：

B(P)DB

Bis(pinacolato)diborane Use and Manufacturing

As a boron source in Pt-mediated diborations, coupling reactions; in Rh-or Ir-mediated borylations of alkanes and arenes, and in carbenoid chemistry.

Computed Properties

Molecular Weight:253.9
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:1
Exact Mass:254.1860696
Monoisotopic Mass:254.1860696
Topological Polar Surface Area:36.9
Heavy Atom Count:18
Complexity:286
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Toluene

n-Pentane

Cyclohexane

Ethyl acetate

Benzene

PETROLEUM ETHER

4-tert-Butylcatechol

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