A noncatalyzed conjugate addition reaction of alkylaluminium compounds to 1,3-dibenzyl-5-methylene-2,4-imidazolidinedione 1 led to the exclusive formation of single and double conjugate adducts (2 and 3, respectively). The ratio of 2 : 3 depended on the reaction temperature and the concentration of 1.
一种未催化的烷基铝化合物与1,3-二苄基-5-亚甲基-2,4-
咪唑烷二酮 1 的共轭加成反应导致了单一和双重共轭加合物(分别为2和3)的专一生成。2和3的比例取决于反应温度和1的浓度。