1: thiophene-2-carbaldehyde With 3 A molecular sieve; cesium fluoride in N,N-dimethyl-formamide T=20°C; 2: 3-trimethylsilylindazole in N,N-dimethyl-formamide T=20°C; 4 h;
1: 4-fluorobenzaldehyde With 3 A molecular sieve; cesium fluoride in N,N-dimethyl-formamide T=20°C; 2: 3-trimethylsilylindazole in N,N-dimethyl-formamide T=20°C; 7 h;
1: 4-methoxy-benzaldehyde With 3 A molecular sieve; cesium fluoride in N,N-dimethyl-formamide T=20°C; 2: 3-trimethylsilylindazole in N,N-dimethyl-formamide T=20°C; 10 h;
1: propionaldehyde With 3 A molecular sieve; cesium fluoride in N,N-dimethyl-formamide T=20°C; 2: 3-trimethylsilylindazole in N,N-dimethyl-formamide T=20°C; 11 h;
1: acetophenone With 3 A molecular sieve; cesium fluoride in N,N-dimethyl-formamide T=20°C; 2: 3-trimethylsilylindazole in N,N-dimethyl-formamide T=20°C; 11 h;
