Q56 · CSIR-NET Chemistry, June 2019
Paper: CSIR-NET June 2019 · Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Organometallic Compounds – General · Marks: 2 · Difficulty: Hard
A plausible structure of the intermediate involved in the following reaction
$[\mathrm{Fe}(\eta^{5}\text{-}\mathrm{C_5H_5})(\mathrm{CH_3})(\mathrm{CO})_2] + \mathrm{PPh_3} \rightarrow [\mathrm{Fe}(\eta^{5}\text{-}\mathrm{C_5H_5})(\mathrm{C}(=\mathrm{O})\mathrm{CH_3})(\mathrm{CO})(\mathrm{PPh_3})]$
(a)
(b)
(c)
(d)
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
The methyl migrates to a cis CO, giving the 16-electron acyl CpFe(CO)(C(O)CH₃) (c), which PPh₃ then traps.
Study loop for Organometallic Compounds