Reaction of Grignard reagents with isopropylidene bis(methyltio)methylenemalonate (1) resulted in conjugate addition to give an intermediate 2, which could either be hydrolyzed to an isopropylidene (1-methylthioalkylidene)malonate 3 or reacted with ammonium chloride to give an isopropylidene (1-aminoalkylidene)malonate 4.
格氏试剂与异亚丙基双(甲基
硫代)亚
甲基丙二酸酯 (1) 反应,产生共轭加成,得到中间体 2,该中间体可以
水解为异亚丙基 (1-甲
硫基亚烷基)
丙二酸酯 3 或与
氯化铵反应,得到异亚丙基 (1 -
氨基亚烷基)
丙二酸酯 4.