Abstract Selective hydrogenation of the carbonyl functional group of α,β-unsaturated carbonyl compounds affords industrially important allylic alcohols. However, achieving the selective reduction of the carbonyl group in the presence of the activated olefinic group is challenging. Therefore, the development of a highly chemoselective, efficient, and recyclable catalyst for this transformation is greatly desirable from the industrial and environmental viewpoints. In this study, a Ru-immobilized bisphosphine-based porous organic polymer (Ru@PP-POP) was used as an efficient heterogeneous catalyst for chemoselective hydrogenation of cinnamaldehyde (CAL) to cinnamyl alcohol with high chemoselectivity (98%) and excellent recyclability. To the best of our knowledge, the catalyst, Ru@PP-POP showed a high turnover number (970) and a high turnover frequency (240 h-1) which is the best activity obtained using a phosphine based heterogeneous Ru-catalyst in this transformation.

中文翻译：

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使用嵌入在双膦基 POP 上的可回收 Ru 催化剂对 α,β-不饱和羰基化合物进行化学选择性加氢

摘要 α,β-不饱和羰基化合物的羰基官能团的选择性氢化提供了工业上重要的烯丙醇。然而，在活化的烯烃基团存在下实现羰基的选择性还原是具有挑战性的。因此，从工业和环境的角度来看，开发用于这种转化的高度化学选择性、高效和可回收的催化剂是非常需要的。在这项研究中，Ru 固定化的双膦基多孔有机聚合物（Ru@PP-POP）被用作一种高效的多相催化剂，用于肉桂醛（CAL）化学选择性氢化成肉桂醇，具有高化学选择性（98%）和优异的可回收性。据我们所知，催化剂，