Catalyst Development for the Synthesis of Ozonides and Tetraoxanes Under Heterogeneous Conditions: Disclosure of an Unprecedented Class of Fungicides for Agricultural Application
作者:Ivan A. Yaremenko、Peter S. Radulov、Yulia Y. Belyakova、Arina A. Demina、Dmitriy I. Fomenkov、Denis V. Barsukov、Irina R. Subbotina、Fabrice Fleury、Alexander O. Terent'ev
DOI:10.1002/chem.201904555
日期:2020.4.9
heterogeneous conditions. Synthesis of peroxides under heterogeneous conditions is a rare process and represents a challenge for this field of chemistry, because peroxides tend to decompose on the surface of a catalyst . A new class of antifungal agents for crop protection, that is, cyclic peroxides: bridged 1,2,4,5-tetraoxanes and bridged ozonides, was discovered. Some ozonides and tetraoxanes exhibit a very
开发了负载在SiO2上的催化剂H3 + x PMo12-x +6 Mox +5 O40,用于过氧化氢对1,3-和1,5-二酮的过氧化作用,形成桥联的1,2,4,5-四恶烷和在异质条件下,基于分离的产物(分别高达86%和90%),可以高收率连接1,2,4-三氧杂环戊烷(臭氧化物)。在非均相条件下合成过氧化物是一种罕见的方法,并且对该化学领域提出了挑战,因为过氧化物趋于在催化剂表面上分解。发现了用于保护农作物的一类新的抗真菌剂,即环过氧化物:桥连的1,2,4,5-四恶烷和桥连的臭氧化物。一些臭氧化物和四恶烷显示出很高的抗真菌活性,并且优于商业杀真菌剂,例如三唑酮和克雷索辛甲基。