Triphenylphosphine → HCID 67006731, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 8-(2-azido-ethoxy)-10a-(4-chloro-benzenesulfonyl)-1,4-difluoro-6a,7,8,9,10,10a-hexahydro-6H-benzo[c]chromene (110 mg, 0.242 mmol) in 4:1 THF/H2O (5 mL) was treated with Ph3P (127 mg, 0.484 mmol) and the reaction was heated to 60° C. After 16 h, the reaction mixture was cooled to ambient temperature and concentrated in vacuo to remove the THF. The reaction mixture was diluted with saturated aqueous NH4Cl and extracted with CH2Cl2 (3×). The combined organic extracts were dried over MgSO4 and concentrated in vacuo. Flash chromatography (10% MeOH/CH2Cl2) provided the title compound (52 mg, 52%): 1H NMR (CDCl3 400 MHz) δ 7.62 (d, J=8.8 Hz, 2H), 7.49 (d, J=8.8 Hz, 2H), 7.06 (m, 1H), 6.43 (m, 1H), 5.22 (dd, J=10.9, 2.9 Hz, 1H), 4.11 (d, J=11.7 Hz, 1H), 3.51 (m, 1H), 3.41 (m, 2H), 2.98 (m, 1H), 2.88 (br s, 2H), 2.39 (m, 2H), 1.94 (m, 2H), 1.49 (m, 3H), 1.13 (m, 1H).

Provenance & Evidence