1: phenylacetylene With n-butyllithium in tetrahydrofuran T=-30°C; 0.5 h; 2: 1-(p-toluenesulfonyl)cyclopropanol in tetrahydrofuran T=-30°C; 2 h; Further stages.;

1: 4-methyl phenyl acetylene With n-butyllithium in tetrahydrofuran T=-30°C; 0.5 h; 2: 1-(p-toluenesulfonyl)cyclopropanol in tetrahydrofuran T=-30°C; 2 h; Further stages.;