申请人:Ohrlein Reinhold
公开号:US20050014954A1
公开(公告)日:2005-01-20
The invention relates to a novel process for the preparation of N-substituted pyrroles, especially of formula (V), wherein the radicals are as defined in the description, by intermolecular aza-Wittig reaction starting from organic azides and 1,4-dioxo compounds. The invention relates also to novel iminophosphorane intermediates for this synthesis. The resulting pyrroles are useful, for example, in the organic synthesis of pharmaceuticals or other active substances and chemicals.
本发明涉及一种以有机叠氮化物和 1,4-二氧代化合物为起点,通过分子间偶氮-维蒂希反应制备 N-取代的吡咯,特别是式 (V),其中自由基如描述中所定义。本发明还涉及用于这种合成的新型亚氨基磷烷中间体。由此得到的吡咯类化合物可用于医药或其他活性物质和化学品的有机合成。