Bis(pinacolato)diboron

Bis(pinacolato)diboron

Names
Preferred IUPAC name Octamethyl-2,2′-bi-1,3,2-dioxaborolane
Identifiers
CAS Number	73183-34-3 Y
3D model (JSmol)	Interactive image
Abbreviations	B2pin2
ChEBI	CHEBI:183312
ChemSpider	2015334 N
ECHA InfoCard	100.111.245
PubChem CID	2733548
UNII	I906W26P4U Y
CompTox Dashboard (EPA)	DTXSID30369935
InChI InChI=1S/C12H24B2O4/c1-9(2)10(3,4)16-13(15-9)14-17-11(5,6)12(7,8)18-14/h1-8H3 N Key: IPWKHHSGDUIRAH-UHFFFAOYSA-N N InChI=1/C12H24B2O4/c1-9(2)10(3,4)16-13(15-9)14-17-11(5,6)12(7,8)18-14/h1-8H3 Key: IPWKHHSGDUIRAH-UHFFFAOYAV
SMILES B1(OC(C(O1)(C)C)(C)C)B2OC(C(O2)(C)C)(C)C
Properties
Chemical formula	C12H24B2O4
Molar mass	253.94 g·mol−1
Melting point	137 to 140 °C (279 to 284 °F; 410 to 413 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Bis(pinacolato)diboron is a covalent compound containing two boron atoms and 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. Unlike some other diboron compounds, B₂pin₂ is not moisture-sensitive and can be handled in air.^[1]