Structure of 13-Bromotridecanoic acid
CAS No.: 15462-16-5
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CAS No. : | 15462-16-5 |
Formula : | C13H25BrO2 |
M.W : | 293.24 |
SMILES Code : | O=C(O)CCCCCCCCCCCCBr |
MDL No. : | N/A |
InChI Key : | URRQVPLXJGRRDS-UHFFFAOYSA-N |
Pubchem ID : | 11243324 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | In acetonitrile; at 90℃; for 96.0h;Inert atmosphere; | A suspension of 13 (1.064 g, 3.625 mmol, 1.00 equiv) and PPh3 (0.960 g, 3.625 mmol, 1.00 equiv) in MeCN (3.6 mL) was heated at 90 C for 4 d. After cooling to r.t., the solvent was evaporated under reduced pressure. The remainder was dissolved in a small amount of CHCl3 and precipitated with Et2O to afford the title compound. Yield: 2.015 g (3.625 mmol, quant.); colourless solid; mp 85-87 C. IR (ATR): 2922, 2851, 1715, 1587, 1482, 1467, 1436, 1398, 1379, 1337, 1315, 1211, 1178, 1162, 1111, 1073, 1025, 995, 931, 854, 790, 748, 723, 690, 614 cm-1. 1H NMR (CDCl3, 500 MHz): δ = 7.85-7.74 (m, 9 H, CH-Ph), 7.73-7.66 (m, 6 H, CH-Ph), 3.75-3.59 (m, 2 H, 13-H), 2.35 (t, J = 7.4 Hz, 2 H, 2-H), 1.67-1.50 (m, 6 H, 3-H, 4-H, 12-H), 1.27-1.15 (m, 14 H, 5-H to 11-H). 13C NMR (CDCl3, 125 MHz): δ = 177.8, 135.2, 135.1, 133.8, 133.7, 130.7, 130.6, 118.8, 118.1, 34.4, 30.5, 30.4, 29.2, 29.1, 29.0, 28.98, 28.87, 24.8, 23.0, 22.72, 22.68, 22.57. |
90% | In toluene; at 0℃; for 27.0h;Inert atmosphere; Reflux; | To a solution of 45 (0.46 g, 1.6 mmol) in toluene (3.2 mL) wasadded PPh3 (0.83 g, 3.2 mmol) at 0 C. After stirring for 27 h underreflux conditions, the completion of the reaction was confirmed by TLC(10:1 CHCl3/MeOH). On cooling to rt, the upper layer was decantedand the lower layer was diluted with CH2Cl2 and concentrated. Theresulting residue was purified by silica gel column chromatography(20:1 CHCl3/MeOH) to give 46 (0.79 g, 90%) as colorless syrup. 1HNMR (500 MHz, CDCl3) δ 7.83-7.70 (m, 15H, Ar), 3.72-3.67 (m, 2H,CH2PPh3), 2.37 (t, 2H, Jvic=7.5 Hz, COCH2), 1.62-1.57 (m, 6H,COCH2CH2, CH2CH2CH2PPh3), 1.31-1,19 (m, 14H, -CH2-); 13C NMR(125 MHz, CDCl3) δ 177.6, 135.1, 135.1, 133.7, 133.6, 130.6, 130.5,118.7, 118.0, 34.3, 30.4, 30.3, 29.1, 29.0, 29.0, 28.9, 28.8, 24.7, 22.9,22.7, 22.6, 22.5. HRMS (ESI) m/z: found [M-H]- 473.2618,C31H38O2P calcd for [M-H]- 473.2618. |