Abstract In this paper, we present a Lewis-acid-promoted reaction of 2-benzoylbenzaldehyde and trialkenyl phosphites, which resulted in the formation of polycyclic phosphonates. The reaction proceeded via nucleophilic attack of trialkenyl phosphite on the carbonyl carbon of 2-benzoylbenzaldehyde. The subsequent intramolecular Diels-Alder reaction led to the formation of the cyclic phosphonate.

中文翻译：

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通过 2-苯甲酰苯甲醛和烯基亚磷酸酯的分子内 Diels-Alder 反应合成多环膦酸酯

摘要 在本文中，我们提出了路易斯酸促进的 2-苯甲酰苯甲醛和三烯基亚磷酸酯的反应，该反应导致形成多环膦酸酯。该反应通过亚磷酸三烯基对 2-苯甲酰苯甲醛的羰基碳的亲核攻击而进行。随后的分子内 Diels-Alder 反应导致形成环状膦酸酯。