2-a]pyridinecarbaldehyde 1 in a basic medium, at low temperature. The X-ray crystal structure of 2 (C19H19N2O2S: Mr = 338.43, triclinic, P 1 , a = 8.193(3) A , b = 10.090(2) A , c = 10.981(4) A , α = 88.12(2)°, β = 78.66(4)°, γ = 78.53(2)°, V = 872.3(6) A 3 , Z = 2, Dcalc = 1.29 g cm−3, λ( Mo K α) = 0.71069 A , μ = 0.189 mm−1, F(000) = 356, T = 293 K, R = 0.043 for 3610 observed reflections) has been determined
摘要 在碱性介质中,通过
噻吩氧基
乙酸乙酯碳负离子在碱性介质中对
咪唑并[1,2-a]
吡啶甲醛 1 的作用,以非对映选择性(de > 98%)获得标题化合物 2,即一种 gem
乙烯基硫化物酯。2 (C19H19N2O2S: Mr = 338.43, 三斜晶系, P 1 , a = 8.193(3) A , b = 10.090(2) A , c = 10.981(4) A , α = 88.12(2) A )的X射线晶体结构°, β = 78.66(4)°, γ = 78.53(2)°, V = 872.3(6) A 3 , Z = 2, Dcalc = 1.29 g cm−3, λ( Mo K α) = 0.71069 A , μ = 0.189 mm−1、F(000) = 356、T = 293 K、R = 0.043(对于 3610 次观察到的反射)已确定并确认 Z 配置。除了苯环位