Question

The organometallic reagent(s) among the following is(are)

• A. Lithium divinylcuprate
• B. Lithium diisopropylamide
• C. Potassium tert-butoxide
• D. Isopropyl magnesiumiodide

Hint:

Organometallic reagents are characterized by the presence of a metal-carbon bond. Grignard reagents and organocuprates are common examples.

Answer 1

The Correct Option is A, D

Step 1: Understanding organometallic reagents.
Organometallic reagents typically contain a metal-carbon bond, where the metal is typically a metal from group 1, 2, or 3 of the periodic table. Common examples include Grignard reagents and organocuprates.

Step 2: Analyzing the options.
- Option (A) Lithium divinylcuprate is an organocuprate, which is an organometallic reagent.
- Option (B) Lithium diisopropylamide is not organometallic, as it contains no metal-carbon bond.
- Option (C) Potassium tert-butoxide is not organometallic, as it involves a potassium-oxygen bond.
- Option (D) Isopropyl magnesium iodide is a Grignard reagent, which is a typical organometallic compound.

Step 3: Conclusion.
The correct organometallic reagents are (A) and (D).