1426954-54-2Relevant articles and documents
An NHC-Stabilised Phosphinidene for Catalytic Formylation: A DFT-Guided Approach
Sreejyothi,Bhattacharyya, Kalishankar,Kumar, Shiv,Kumar Hota, Pradip,Datta, Ayan,Mandal, Swadhin K.
supporting information, p. 11656 - 11662 (2021/07/02)
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 lone pairs 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 (1), for the activation of CO2 is reported.A closer inspection of the CO2 activation process by DFT calculations along with intrinsic bond orbital analysis shows that phosphinidene is associated with phenylsilane through a noncovalent π-π interaction between two phenyl rings which activates the Si?H bond facilitating hydride transfer to the CO2 molecule. Detailed DFT studies along with spectroscopic experiments were combined to understand the mechanism of CO2 activation and its catalytic reductive functionalisation leading to the formylation of a range of chemically inert primary amides under mild reaction conditions.
Otherwise inert reaction of sulfonamides/carboxamides with formamides via proton transfer-enhanced reactivity
Niu, Zaihai,Lin, Shaoxia,Dong, Zhiyong,Sun, Hao,Liang, Fushun,Zhang, Jingping
, p. 2460 - 2465 (2013/06/04)
NBS-mediated addition-elimination reaction of sulfonamides/carboxamides and formamides afforded N-sulfonylamidines and N-formylarylamides, respectively, depending on the different mechanism of elimination. Hydrogen bond-induced proton transfer leads to en
