Abstract

Ca(OTf)₂/Bu₄NPF₆ catalytic system has been illustrated for the synthesis of Diels–Alder adduct for the first time. This procedure tolerates substrate diversity and delivers high yield. Use of environmentally benign catalyst, high yields and substrate diversity are the highlight of the existing method.

Graphic Abstract

Ca(OTf)₂, along with n-Bu₄NPF₆ as the co-catalyst, is shown to be an effective Lewis acidic catalyst system for the Diels–Alder reaction. Apart from being sustainable and efficient, this procedure is robust and products are obtained in near-quantitative yields.

中文翻译：

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Lewis酸催化剂体系用于Diels–Alder反应

摘要

Ca（OTf）₂ / Bu ₄ NPF ₆催化体系首次被证明用于Diels-Alder加合物的合成。此过程可耐受底物多样性并提供高产量。使用环境友好的催化剂，高产率和底物多样性是现有方法的重点。

图形摘要

Ca（OTf）₂和n- Bu ₄ NPF ₆作为助催化剂，被证明是一种有效的路易斯酸性催化剂体系，用于Diels-Alder反应。除了可持续和高效之外，此过程还很健壮，并且以接近定量的产量获得了产品。