Cp2ZrCl2 – Et3Al reagent system in the homo-coupling of trimethylsilyl-substituted alkynes?
RSC Advances Pub Date: 2021-12-13 DOI: 10.1039/D1RA08268J
Abstract
The reaction of trimethylsilyl-substituted alkynes with 0.5 equivalents of Cp2ZrCl2 and 1 equivalent of Et3Al in toluene at room temperature for 18 hours gives, after hydrolysis/deuterolysis or iodination, functionalized products of the homo-coupling of silyl-substituted alkynes in good yield. Trimethylsilyl-substituted α,ω-diynes react with the Cp2ZrCl2 – Et3Al reagent system to give (1Z,2Z)-1,2-bis(iodo(trimethylsilyl)methylene)cycloalkanes after iodinolysis.
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Journal Name：RSC Advances
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CAS no.: 89640-58-4
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