The reaction of lithium alkyneselenolate with α,β-unsaturatedketone and then alkyl or acyl halide afforded 3-acyl-1-alkyl-2-alkylseleno-1-cyclobutene. The structure of the cyclobutene was elucidated by IR, MS, 1H, 13C, and 77Se NMR, COSY, HMQC, and HMBC data and X-ray analysis.
炔硒酸锂与α,β-不饱和酮反应,然后与烷基或酰基卤反应,得到3-酰基-1-烷基-2-烷基硒基-1-环丁烯。通过IR,MS,1 H,13 C和77 Se NMR,COSY,HMQC和HMBC数据以及X射线分析来阐明环丁烯的结构。