Match column A (coupling reactions) with column B (reagents) The correct match is: · ABC26IN0253
Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Organometallic Compounds – General · Exam: CSIR NET 2015 · Marks: 2 · Difficulty: Medium
Match column A (coupling reactions) with column B (reagents) | Column-A | Column-B |
|---|
| (1) Suzuki coupling | (I) $\mathrm{H_2C{=}CHCO\,CH}$ |
| (2) Heck coupling | (II) $\mathrm{RB(OH)}$, |
| (3) Sonagashira coupling | (III) $\mathrm{PhCO(CH)\,ZnI}$ |
| (4) Negeshi coupling | (IV) CHECR |
| (V) $\mathrm{SnR}$ |
(a)1-II, 2-I, 3-IV, 4-III
(b)1-I, 2-V, 3-III, 4-IV
(c)1-IV, 2-III, 3-II, 4-I
(d)1-II, 2-III, 3-IV, 4-V
Answer
Answer: A ✓ checked by 4AB · confidence high
Answer: a–II, b–I, c–IV, d–III.
Explanation
Suzuki coupling (1) uses an organoboronic acid RB(OH)₂ (II); Heck coupling (2) uses an activated alkene, the acrylate (I); Sonogashira coupling (3) uses a terminal alkyne (IV); Negishi coupling (4) uses an organozinc halide (III). Match: 1-II, 2-I, 3-IV, 4-III — option (a).
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