The final product (s) of the reaction P(OR)₃+R′ X is/are · ABC26IN1238

Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Elements – General · Exam: CSIR NET DEC 2011 · Marks: 2 · Difficulty: Easy

The final product (s) of the reaction $\mathrm{P}(\mathrm{OR})_{3}+\mathrm{R}^{\prime} \mathrm{X}$ is/are
(a)$\mathrm{R}^{\prime} \mathrm{PO}(\mathrm{OR})_{2}$ and RX
(b)$\left[\mathrm{R}^{\prime} \mathrm{PO}(\mathrm{OR})_{2}\right] \mathrm{X}$
(c)$\left[\mathrm{R}^{\prime} \mathrm{RPO}_{2}(\mathrm{OR})\right] \mathrm{X}$
(d)ROR'and $\mathrm{P}(\mathrm{OR})_{2} \mathrm{X}$
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
Michaelis–Arbuzov: the phosphite is alkylated at P, and the halide then dealkylates the phosphonium ion, giving the phosphonate R′P(O)(OR)₂ and the alkyl halide RX.

Study loop for Main Group Elements

1. Practise the PYQsPrevious-year questions, with answers

· Browse this chapter in the app