Bis(neopentyl glycolato)diboron synthesis
- Product Name:Bis(neopentyl glycolato)diboron
- CAS Number:201733-56-4
- Molecular formula:C10H20B2O4
- Molecular Weight:225.89
126-30-7
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201733-56-4
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Yield:201733-56-4 54.5%
Reaction Conditions:
with tetrakis(dimethylamido)diborane in toluene at 20 - 105; for 1.03333 h;
Steps:
2 Preparation of bis(neopentylglycolato)diboron
Tetrakis (dimethylamino) diboron (9.89 g, 52.65 mmol) was added to a solution of 2,2- dimethyl-1, 3-propanediol [neopentylglycol] (10.42 g, 100 mmol) in toluene (40 mL) at room temperature within two minutes. The mixture was heated to 105 C and an evolution of dimethylamine started to occur at 85 C. The mixture was heated for 60 minutes at 105 C then the toluene was removed to give a white solid: 11.39 g, 95.8%. Recrystallisation from toluene gave bis (neopentylglycolato) boron (MF: CLOH20B204 ; FW: 225.89) 6.48 g, 54.5%. mp 182.5-184. 5 C. 8 (CDCL3, 200 MHz) 0.94 (s, 12H); 3.58 (s, 6H) ppm. 13C 8 (CDCL3, 50 MHz) 22.3 (4x CH3) ; 31.9 (2x C), 71.7 (4x CH2) ppm. The mother liquor was kept for further recrystallization.
References:
BORON MOLECULAR PTY LTD WO2004/76467, 2004, A1 Location in patent:Page 15
13675-18-8
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126-30-7
643 suppliers
$8.00/100g
201733-56-4
271 suppliers
$5.00/1g
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201733-56-4
271 suppliers
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126-30-7
643 suppliers
$8.00/100g
201733-56-4
271 suppliers
$5.00/1g