Trimethylaluminum-triflimide complexes for the catalysis of highly hindered Diels-Alder reactions.
نویسندگان
چکیده
Two catalysts, Me(2)AlNTf(2) and MeAl(NTf(2))(2), derived from the mixing of trimethylaluminum with triflimide, proved to be highly effective catalysts in hindered Diels-Alder reactions, generating the desired Diels-Alder cycloadducts from both hindered 2-silyloxydienes and hindered dienophiles. Thus reaction of 1 with 2 afforded the hindered cycloadduct 4 in excellent yield in 0.5-1.5 h at -40 °C.
منابع مشابه
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ورودعنوان ژورنال:
- Organic letters
دوره 14 20 شماره
صفحات -
تاریخ انتشار 2012