反应条件
1: With triphenylphosphine; palladium diacetate in tetrahydrofuran T=20°C; 0.5 h; 2: 2-n-butyl-3-[4-(5,5-dimethyl-[1,3,2]dioxaborinan-2-yl)benzyl]-1,3-diazaspiro[4.4]non-1-ene-4-one; N-trityl-5-(2-bromophenyl)tetrazole With potassium phosphate in tetrahydrofuran 48 h; Heating / reflux; Product distribution / selectivity;