19064-21-2Relevant academic research and scientific papers
An NHC-Stabilised Phosphinidene for Catalytic Formylation: A DFT-Guided Approach
Sreejyothi,Bhattacharyya, Kalishankar,Kumar, Shiv,Kumar Hota, Pradip,Datta, Ayan,Mandal, Swadhin K.
, p. 11656 - 11662 (2021)
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.
An efficient method for the preparation of N-formyl-imide via amidine using propylphosphonic anhydride (T3P)
Sambaiah,Gudipati, Ramakrishna,Shiva Kumar,Yennam, Satyanarayana,Behera, Manoranjan
supporting information, p. 403 - 406 (2016/01/12)
An efficient method for the preparation of N-formyl imide via amidine using propylphosphonic anhydride (T3P) has been described. Using this method many aryl, hetero aryl, alkyl as well as amino acid imides were synthesized in high yields.
