An efficient synthesis of the title compound 14 is reported, which employs the ZnCl2/Et2O catalyzed addition of acetyl chloride (4) to 2-methyl-2-butene (5) and the [3+ + 2] cycloaddition of the 1,1,2,3-tetramethylallyl cation to 2,3-dimethyl-2-butene as key steps.
报告了标题化合物14的有效合成,该化合物使用ZnCl 2 / Et 2 O催化的乙酰氯(4)加到2-甲基-2-丁烯(5)上,并[3 + + 2]环加成。 1,1,2,3-四甲基烯丙基阳离子生成2,3-二甲基-2-丁烯为关键步骤。
Stevens, Journal of the American Chemical Society, 1934, vol. 56, p. 451
作者:Stevens
DOI:——
日期:——
144. The effect of molecular environment on the absorption spectra of organic compounds in solution. Part II. αβ-Unsaturated ketones
作者:L. K. Evans、A. E. Gillam
DOI:10.1039/jr9410000815
日期:——
Braude et al., Journal of the Chemical Society, 1949, p. 1890,1892