我们发现环金属化环戊二烯基铱 (III) 配合物是将肟均相氢化成羟胺产物的独特高效催化剂。稳定的铱 C,N 螯合至关重要,烷氧基取代的芳基酮亚胺配体可提供最佳催化性能。通过 X 射线晶体分析绘制了几种 Ir 配合物,以收集空间参数,这些参数可能指导更活性催化剂的合理设计。大量的肟和肟醚被化学计量的甲磺酸活化并在室温下被还原,显着地没有断裂脆弱的 NO 键。添加剂测试进一步证明了我们加氢系统的精细官能团兼容性。实验机理研究支持离子氢化平台,并建议布朗斯台德酸在质子源之外的作用。我们的研究提供了对这种新型酸性氢化的深入理解,并可能促进其改进和应用于其他具有挑战性的底物。
[EN] 1 -(PYRIDAZIN-3-YL)-IMIDAZOLIDIN-2-ONE DERIVATIVES AS HERBICIDES<br/>[FR] DÉRIVÉS DE 1 -(PYRIDAZIN-3-YL)-IMIDAZOLIDIN-2-ONE EN TANT QU'HERBICIDES
申请人:SYNGENTA PARTICIPATIONS AG
公开号:WO2015067701A1
公开(公告)日:2015-05-14
The invention relates to pyrrolone compounds of the formula (I) wherein R1, R2, R3, Rb, Rc and Rd are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds to control plant growth.
The invention relates to substituted pyrrolone derivatives of the formula (I) wherein X, A, R
1
, R
2
and R
3
are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds to control or inhibit plant growth.
The invention relates to pyrrolone compounds of the formula (I), wherein X, R1, R2, R3, Ra, Rb, Rc and Rd are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds to control plant growth.
[EN] DIHYDRO-HYDANTOIN DERIVATIVES WITH HERBICIDAL ACTIVITY<br/>[FR] DÉRIVÉS DE DIHYDRO-HYDANTOÏNE À ACTIVITÉ HERBICIDE
申请人:SYNGENTA PARTICIPATIONS AG
公开号:WO2015097043A1
公开(公告)日:2015-07-02
The invention relates to substituted dihydro-hydantoin derivatives of the formula (I) wherein X, Ra, Rb, Rc, R1, R2 and R3 are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds 10 to control or inhibit plant growth.
The invention relates to pyrrolone compounds of the formula (I) wherein X, R
1
, R
2
, R
3
, R
a
, R
c
and R
d
are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds to control plant growth.