437770-51-9

Upstream product

• 437770-49-5 K⁽¹⁺⁾*Cr(CO)5(CH(CH₃)C(O)OCH₃)^(1-)=K[Cr(CO)5(CH(CH₃)C(O)OCH₃)] 
• 21050-13-5 bis(triphenylphosphine)iminium chloride 
• 124406-73-1 potassium hydridopentacarbonylchromate 

Relevant academic research and scientific papers

The reaction of potassium hydridopentacarbonylchromate with acrylates. X-ray structure of [PPN]+[CH3CH(COOEt)Cr(CO))5]-

KHCr(CO)5 reacts with methyl acrylate in acetonitrile to give methyl propionate after acid hydrolysis. Monitoring the reaction by IR and NMR spectroscopy showed that the reaction mainly proceeds through the 1,2-addition product K+ [CH3CH(COOMe)Cr(CO)5]-. However, in situ formation of methyl propionate (ca. 15%) before hydrolysis suggests that part of the reaction also occurs through the 1,4-adduct K+ [CH3CH=C(OMe)OCr(CO)5]-. The PPN+ salt of the 1,2-adduct obtained from ethyl acrylate was characterized by single crystal X-ray diffraction.