Table 4. Hydroalkenylation of dienes with α,β-unsaturated hydrazones a .
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aReaction conditions: 1a (0.4 mmol), α,β-unsaturated hydrazones 4 (0.2 mmol), Ni(COD)2 (0.02 mmol), P(4-CF3C6H4)3 (0.024 mmol), tBuOLi (0.02 mmol), EtOH (1.5 mL) at 80 °C for 8 h. Isolated yields. Regioselectivity was determined by 1H NMR analysis.
b 1a (0.2 mmol), α,β-unsaturated hydrazones 4 (0.4 mmol).