4 methyl n p tolylbenzenesulfonamide 1a was chosen as a model substrate to react with vinyl acetate 2 in the initial experiments to optimize the reaction conditions which had not been used by stahl 20 in the coupling of vinyl ethers to give the corresponding enamides a blank test which was conducted only in the presence of k 3 po 4 failed to produce the desired product 3a and the. 1 product result match criteria. Relatively speaking this group is unreactive. 
				
			
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