Question

name of reaction when C6H5I on heating with Cu powder form biphenyl

Answer 1

Hey mate ☺

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C6H5I + Cu = C6H5C6H5 + I2Cu 


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✌hope it help u

Answer 2

Answer:

The reaction is known as the Ullmann reaction.

Explanation:

• The mechanism of the Ullmann reaction has been thoroughly investigated. Complications occur because the responses are often heterogeneous, especially those that start with metallic copper. Electron spin resonance does not detect radical intermediates.
• The oxidative addition/reductive elimination process appears to be the most frequent, but one-electron steps may be necessary for other circumstances. Copper(III) has only been seen a few times, although it is becoming more common in this field of catalysis. The copper(I) species with empirical formula ArCu and CRX, as well as the copper(II) species ArCuX, are thought to represent the first organocopper intermediates (other ligands omitted).

The oxidative addition of the aryl halide is a crucial step in nickel-catalyzed reactions.