4426-31-7

Upstream product

• 7732-18-5 water 
• 16924-32-6 1.1-dimethyl borane⁽⁶⁾ 
• 5518-25-2 Diethylborane 
• 791-28-6 Triphenylphosphine oxide 
• 94072-03-4 (C₂H₅)2BN(C₂H₅)OB(C₂H₅)2 
• 116928-37-1 2,2,4,4-tetraethyl-3-oxonia-1-azonia-5-aza-2,4-diboratabicyclo{3.3.0}octa-6,8-diene 
• 125901-95-3 potassium (4,5,5-triethyl-2,5-dihydro-2,2,3-trimethyl-1,2,5-oxasilaboratolate) 
• 62133-33-9 diethyldiborane 
• 132126-10-4 4,5,5-triethyl-2,5-dihydro-2,2-dimethyl-3-phenyl-1,2,5-oxoniasilaboratole 

Downstream Products

• 97-94-9 triethyl borane 
• 7397-46-8 diethyl methoxy borane 

Relevant academic research and scientific papers

Organosubstituted 2,5-Dihydro-1,2,5-oxoniasilaboratoles - Characterization and Reactivity

The potassium salt of the anions , prepared from the organosubstituted cis-2-boryl-1-silylalkenes 1a-d and KOH, react with the electrophiles R1Hal IV: ClElIV(CH3)3, ElIV = Si, Ge, Sn, Pb> to give the neutral five-membered ring compounds .On heating of 3H or 3Sn either ethyl migration occurs to yield the saturated diasteromers , or elimination of ethane takes place to give the unsaturated compounds .The reaction of 2 with ClPb(CH3)3 leads to 3Pb (11B-NMR), which exclusively form 5 with elimination of C2H5Pb(CH3)3.

Novel Substituted B2ElVIN2 Heterocycles

The bis(diorganoboryl) chalcogenides (R2B)2O , (R2B)2S , and (R2B)2Se react with pyrazole (Pz) and its derivatives 3-methylpyrazole (3-MePz) and indazole (benzo-Pz) to form in high yields (65 - 92 percent) stable 1 : 1 adducts . 1H-, 13C-, 11B-NMR spectra and X-ray analyses (of 2 and 6) show a basic structure with a central B2ElN2 (El = O, S, Se) heterocycle.The reaction of 2 with R2BH and the thermolysis of 4 give the dimeric 1-pyrazolylboranes 9a and 9b, respectively. -Keywords: Bis(diorganoboryl)chalcogenides / Pyrazaboles / Pyrazoles