Diethyl-n-Octadecylphosphonate, 98 % synthesis
- Product Name:Diethyl-n-Octadecylphosphonate, 98 %
- CAS Number:16165-72-3
- Molecular formula:C22H47O3P
- Molecular Weight:390.58
Yield:16165-72-3 85%
Reaction Conditions:
at 150;Inert atmosphere;Schlenk technique;
Steps:
Synthesis of octadecyl diethyl phosphonate
To 1 g of 1-bromooctadecane, 2 g of diethylphosphite was added under closed argon atmosphere and heated to 150 °C. Then excess oftriethyl phosphite was removed under high vacuum at 90 °C. 1H NMR: (CDCl3, ppm, J Hz):4.07 (t, 4H, OCH2 J = 13.25), 1.65 (broad, 4H, CH2-CH2), 1.24 (s, 32H, CH2), 0.866 (t, 3H,CH3). 13C NMR: 14.58 (CH3), 16.97 (d, CH3), 22.85-32.39 (C-alkyl chain), 33.31 (C-PCH2),61.81 (d-O-CH2). Mass Spectrum: [M+] = 390.32. Elemental analyses: C22H47O3P, calcd. C,67.65; H, 12.13; found, C, 67.64; H, 12.10.
References:
Mungalimane, Amshumali [Bulletin of the Chemical Society of Ethiopia,2014,vol. 28,# 1,p. 143 - 148]
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