1: meta-aminophenylacetylene in tetrahydrofuran; toluene T=0°C; 0.5 h; Inert atmosphere; 2: 6,7-bis(2-methoxyethoxy)-4-methoxyquinazoline in tetrahydrofuran; toluene T=20°C; 4 h; Product distribution / selectivity;

1: hydrochloric salt of m-aminophenylacetylene With sec.-butyllithium in tetrahydrofuran; cyclohexane T=0°C; 0.5 h; Inert atmosphere; 2: 6,7-bis(2-methoxyethoxy)-4-methoxyquinazoline in tetrahydrofuran; cyclohexane T=20°C; 15 h; 3: With hydrogenchloride in tetrahydrofuran; cyclohexane; water T=20°C; 1 h; Product distribution / selectivity;

1: meta-aminophenylacetylene With lithium diisopropyl amide in tetrahydrofuran; n-heptane; ethylbenzene T=0°C; 0.5 h; Inert atmosphere; 2: 6,7-bis(2-methoxyethoxy)-4-methoxyquinazoline in tetrahydrofuran; n-heptane; ethylbenzene T=20°C; 15 h; 3: With hydrogenchloride in tetrahydrofuran; n-heptane; ethylbenzene; water T=20°C; 3 h; Product distribution / selectivity;