The Reaction of Open-chain Unconjugated Dienes with Palladium Acetate. Dependence of the Products on Disposition of the Two Double Bonds
作者:Nobuo Adachi、Kiyoshi Kikukawa、Makoto Takagi、Tsutomu Matsuda
DOI:10.1246/bcsj.48.521
日期:1975.2
The reaction of open-chain unconjugated dienes with palladium acetate in acetic acid was investigated with particular reference to the behavior of the two double bonds in the course of the acetoxylation. 1,5-Hexadiene produced 3-acetoxymethylenecyclopentane (64%), but 2,6-octadiene bearing two terminal methyl groups gave open-chain acetoxylated products: 3-acetoxy-1,6-octadiene (46%) and 7-acetoxy-2
特别参考两个双键在乙酰氧基化过程中的行为,研究了开链非共轭二烯与乙酸钯在乙酸中的反应。1,5-己二烯生成 3-乙酰氧基亚甲基环戊烷 (64%),但带有两个末端甲基的 2,6-辛二烯生成开链乙酰氧基化产物:3-乙酰氧基-1,6-辛二烯 (46%) 和 7-乙酰氧基- 2,5-辛二烯 (47%)。发现 1,6-庚二烯和二烯丙基醚的反应通过异常反马尔科夫尼科夫加成进行,得到顺式和反式 1-乙酰氧基-1,6-庚二烯 (63%) 和 γ-乙酰氧基烯丙基烯丙基醚 (84%),分别。在 1,7-辛二烯的反应中没有观察到第二个双键的参与。通过假设 π 的形成,可以合理地解释这些二烯对醋酸钯的行为,