An NHC‐Stabilised Phosphinidene for Catalytic Formylation: A DFT‐Guided Approach
作者:P. Sreejyothi、Kalishankar Bhattacharyya、Shiv Kumar、Pradip Kumar Hota、Ayan Datta、Swadhin K. Mandal
DOI:10.1002/chem.202101202
日期:2021.8.11
In recent years, the applications of low-valent main group compounds have gained momentum in the field of catalysis. Owing to the accessibility of two lonepairs of electrons, NHC-stabilised phosphinidenes have been found to be excellent Lewis bases; however, they cannot yet be used as catalysts. Herein, an NHC-stabilised phosphinidene, 1,3-dimethyl-2-(phenylphosphanylidene)-2,3-dihydro-1H imidazole
近年来,低价主族化合物在催化领域的应用得到了蓬勃发展。由于两个孤对电子的可及性,已发现 NHC 稳定的膦亚基是极好的路易斯碱;然而,它们还不能用作催化剂。在此,报道了一种 NHC 稳定的膦亚基,1,3-二甲基-2-(苯基亚膦基)-2,3-二氢-1 H咪唑 (1),用于活化 CO 2。对 CO 2活化的仔细检查通过 DFT 计算以及本征键轨道分析的过程表明,膦亚基通过两个苯环之间的非共价 π-π 相互作用与苯基硅烷相关联,这激活了 Si-H 键,促进了氢化物转移到 CO 2分子。详细的 DFT 研究与光谱实验相结合,以了解 CO 2活化的机制及其催化还原官能化,导致一系列化学惰性伯酰胺在温和反应条件下甲酰化。
Iodine and ammonium persulfate mediated activation of DMSO: an approach to <i>N</i>-formylation of amides and synthesis of isatins
作者:Showkat Ahmad Bhat、Mohammad Yaqoob Bhat、Suhail A. Rather、Ifshana Gani、Khursheed Ahmad Bhat、Qazi Naveed Ahmed
DOI:10.1039/d2ob01599d
日期:——
An efficient strategy towards N-formylation of amides and oxidation of indolines to isatins is described.
描述了一种高效的策略,用于酰胺的N-甲酰化和吲哚烷的氧化成为吲哚酮。
N-aryl-3-aryl-4-substituted-4,5-dihydro-1H-pyrazole-1-carboxamides and processes for their production
申请人:ROHM AND HAAS COMPANY
公开号:EP0466408A1
公开(公告)日:1992-01-15
This invention relates to novel N-aryl-3-aryl-4-substituted-4,5- dihydro-1H-pyrazole-1-carboxamide compounds which are useful as pesticides, compositions containing those compounds, method of controlling pests and process for preparing these compounds.
N-aryl-3-aryl-4-substitued-2,3,4,5-tetrahydro-1H-pyrazole-1-carboxamides and methods of their production
申请人:ROHM AND HAAS COMPANY
公开号:EP0490569A1
公开(公告)日:1992-06-17
This invention relates to novel N-aryl-3-aryl-4-substituted-2,3,4,5-tetrahydro-1H-pyrazole-1-carboxamide compounds which are useful as pesticides, compositions containing those compounds, methods of controlling pests and processes for preparing these compounds.