1: allyl p-toluenesulphonate With tris-(dibenzylideneacetone)dipalladium(0); tris-(o-tolyl)phosphine in 1,2-dichloro-ethane T=20°C; 0.5 h; 2: 3,3-dimethylbut-1-yne in 1,2-dichloro-ethane T=80°C; 12 h; Title compound not separated from byproducts;
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