73183-34-3 structure, C12H24B2O4

Bis(pinacolato)diboron

CAS No.

73183-34-3

Formula:

C12H24B2O4

Basic Info

Bis(pinacolato)diboron is a boron containing two pinacolato ligands. It has the formula [(CH3)4C2O2B]2; the pinacol groups are sometimes abbreviated as "pin", so the structure is sometimes represented as B2pin2. It is a colourless solid that is soluble in organic solvents. It is a commercially available reagent for making pinacol boronic esters for organic synthesis.

Formula
C12H24B2O4
Molecular Weight
253.939
Exact Mass
254.186
LogP
2.2492
PSA
36.92
Synonyms

4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl-4',4',5',5'-tetramethyl-1,3,2-dioxaborolane

BIS(PINACALATO)DIBORON

Bis (pinacoloto)diboron

B2Pin2

7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinolin-1(2H)-one

BIS(PINACOLATO)DIBORANE

Pin2B2

DIBORON PINACOL ESTER

4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi(1,3,2-dioxaborolane)

4,4,5,5-tetramethyl-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane

4,4,5,5-tetramethyl-2-(4,4,5,5 tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane

BIS(DINACOLATO)DIBORON

Bis(pinacolate)diboron

Bis-(Pinacolato) Boron

expand collapse

Properties

Appearance & Physical State
white to off-white powder
Density
0.97 g/cm3
Boiling Point
222.6ºC at 760 mmHg
Melting Point
135-140ºC
Flash Point
88.4ºC
Refractive Index
1.432
Storage Condition
0-6ºC

Safety Info

Safety Statements
S26-S37/39
WGK Germany
3
Risk Statements
R36/37/38
HS Code
2934999090
Hazard Codes

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