bis(pinacolato)diboron2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane4,4',5,5'-octamethyl-2,2'-bi-1,3,2-dioxaborolane4,4,4',4',5,5,5',5'-octamethyl-2,2'-bi(1,3,2-dioxaborolane)4,4,4',4',5,5,5',5'-octamethyl-2,2'-bi-1,3,2-dioxaborolan4,4,4',4',5,5,5',5'-octamethyl-2,2'-bis(1,3,2-dioxaborolane)4,4,5,5,4',4',5',5'-octamethyl-2,2'-bi(1,3,2-dioxaborolane)4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)-1,3,2-dioxaborolane4,4,5,5-tetramethyl-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolanB2pin2bis(pinacolate)diboronbis(pinacolato) diboratebis(pinacolato)diboranediboron pinacol esterdipinacoldiboronoctamethyl-2,2'-bi(1,3,2-dioxaborolane)pinacol diborane