Carbon tetrabromide → HCID 22320750, Verbindung

Reaktionsgleichung

[O:1]([C:8]1[CH:13]=[CH:12][C:11]([C:14]#[C:15][CH2:16]O)=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C(Br)(Br)(Br)[Br:38]>C1COCC1>[Br:38][CH2:16][C:15]#[C:14][C:11]1[CH:12]=[CH:13][C:8]([O:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)=[CH:9][CH:10]=1

Komponenten

Versuchsvorschrift

A solution of 3-(4-Phenoxy-phenyl)-prop-2-yn-1-ol of Example 51 (415 mg, 1.85 mmol), triphenylphosphine (514 mg, 1.96 mmol), carbon tetrabromide (650 mg, 1.96 mmol) in THF (3 ml) was stirred at room temperature for 3 days. Evaporation of the solution, and chromatography of the residue gave the title compound as a brown oil: NMR (CDCl3) δ4.16 (s, 2H), 6.91 (d, J=2.1, 1H), 6.93 (d, J=2.1, 1H), 7.01 (d, J=0.93, 1H), 7.04 (d, J=1.14, 1H), 7.12-7.17 (m, 1H), 7.36 (d, J=0.75, 1H), 7.39 (d, J=1.98, 2H), 7.42 (d, J=2.64, 1H). MS m/z 288 (M+1 calcd. for C15H11BrO 287.155).