An effective Pd nanocatalyst in aqueous media: stilbene synthesis by Mizoroki-Heck coupling reaction under microwave irradiation

作者：Garcia Carolina S; Uberman Paula M; Martin Sandra E^*

来源：Beilstein Journal of Organic Chemistry, 2017, 13: 1717-1727.

DOI：10.3762/bjoc.13.166

• aqueous reaction medium
• MAOS
• Mizoroki-Heck reaction
• Pd nanoparticle
• sustainable organic synthesis

Aqueous Mizoroki-Heck coupling reactions under microwave irradiation (MW) were carried out with a colloidal Pd nanocatalyst stabilized with poly(N-vinylpyrrolidone) (PVP). Many stilbenes and novel heterostilbenes were achieved in good to excellent yields starting from aryl bromides and different olefins. The reaction was carried out in a short reaction time and with low catalyst loading, leading to high turnover frequency (TOFs of the order of 100 h(-1)). The advantages like operational simplicity, high robustness, efficiency and turnover frequency, the utilization of aqueous media and simple product work-up make this protocol a great option for stilbene syntheses by Mizoroki-Heck reaction.

• 出版日期2017-8-18