Reaktion #800110

Reaktionsgleichung

B4

undecanoic acid

compound B2

(9-carboxynonyl)triphenylphosphonium bromide

2,4-difluorobenzaldehyde

→

11-(2,4-difluorophenyl)undecanoic acid

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigeto afford compound

Vorschrift

By the similar procedure of synthesis of B4, compound B2 (2.76 g, 5.38 mmol) and 2,4-difluorobenzaldehyde (588 mg, 4.14 mmole) were used as starting materials to afford compound B15 (431 mg, 1.45 mmol, 35%) as off-white solids. mp: 56° C. 1H-NMR (CDCl3, 400 MHz) δ 7.05-7.13 (m, 1H), 6.70-6.79 (m, 2H), 2.66 (t, J=7.6 Hz, 2H), 2.31 (t, J=7.4 Hz, 2H), 1.50-1.62 (m, 4H), 1.26 (m, 12H). 13C-NMR (CDCl3, 100 MHz) δ 180.00, 162.19, 159.80, 130.90, 125.31, 110.69, 103.44, 34.11, 30.15, 29.44, 29.36, 29.33, 29.19, 29.16, 29.03, 28.41, 24.69. HRMS (ESI) calculated for C17H24F2O2Na [M+Na]+: 321.1642, found: 321.1637.

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