Chemoselective Hydrogenation of Nitroarenes Catalyzed by Molybdenum Sulphide Clusters
作者:Elena Pedrajas、Iván Sorribes、Artem L. Gushchin、Yuliya A. Laricheva、Kathrin Junge、Matthias Beller、Rosa Llusar
DOI:10.1002/cctc.201601496
日期:2017.3.20
nitroarenes to anilines catalyzed by well‐defined diimino and diamino cubane‐type Mo3S4 clusters. The novel diimino [Mo3S4Cl3(dnbpy)3]+ ([5]+) (dnbpy=4,4′‐dinonyl‐2,2′‐dipyridyl, L1) trinuclear complex was synthesized in high yields by simple ligand substitution reactions starting from the thiourea (tu) [Mo3S4(tu)8(H2O)]Cl4⋅4 H2O (3) precursor. This strategy has also been successfully adapted for the isolation
在本文中,我们描述了一种原子有效且通用的协议,用于由明确定义的diimino和diamino cubane型Mo 3 S 4簇催化将硝基芳烃化学选择性氢化为苯胺。通过简单的方法以高收率合成了新型的二亚氨基[Mo 3 S 4 Cl 3(dnbpy)3 ] +([ 5 ] +)(dnbpy = 4,4'-二壬基-2,2'-dipyridyl,L1)三核配合物。配位体取代反应从硫脲(TU)起始[沫3小号4(TU)8(H 2 O)]氯4 ⋅ 4小时2O(3)前体。该策略也已成功地用于分离二氨基[Mo 3 S 4 Cl 3(dmen)3 ](BF 4)([ 6 ](BF 4)),(dmen = N,N'-二甲基乙二胺)盐。使用这些催化剂,已经实现了在官能化的硝基芳烃的氢化中的高选择性。已经以70-99%的产率合成了超过三十种带有合成官能团的苯胺。值得注意的是,簇状核的完整性在催化过程中得以保留。根据