反应详情

The title compound is prepared analogously as described for the title B compound in Example 45 using (2-methoxy-ethyl)-triphenyl-phosphonium bromide (prepared in Example 46) and the title A compound, 5-bromo-2-methyl-benzaldehyde (containing 20% of 3-bromo-2-methyl-benzaldehyde) (6 g, 30.14 mmol): TLC, Rf (hexane/AcOEt 9/1)=0.48. Rt (HPLC, Nucleosil C 8, 10:90-100:0 CH3CN/H2O+0.1% TFA within 5 min, then 100% CH3CN+0.1% TFA): 6.26, 6.34 min.

1. custom6.26, 6.34 min.