Question

I want mechanisms for the this reactions (Diels-Alder cycloaddition reaction ) ,with explain steps , please I want a clear pic. ?

Table 1. [AlCl3 + 2THF]-Catalyzed Diels-Alder Reaction of Ethyl Acrylate (la) with Isoprene (2) under SFC at 30 °C [AICIz + Ln] 5 mol % SFC, 30 °C, 12 h VIPT:. Scheme 2. [AICI; + 2THF]-Catalyzed Diels-Alder Cycloadditions of la with 1,3-Butadienes 4 and 5 at 30 °C [AICI: +2THF] 2.5 mol % SFC, 45 °C, 6 h, 82% [AICI, +2THF] 1 mol % SFC, 0 °C, 12 h, 80% ۳ : ۵۰ م Scheme 1. [AICI; + 2THF]-Catalyzed Cycloadditions of 3-Hepten-2-one (1b) with Isoprene (2) under SFC at 30 °C 2 1b [AICI3 + nTHF] 5 mol % SFC, 30 °C, 1 h Conversion to 3b (%) 3b n = 2 > 99 Isolated yield: 91% n = 0 35 3 : ۵۰ م

Answer 1

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