7-octatrien-2-one and acetophenone. When pyrrolidine and morpholine were used the corresponding 8-amino ketones were produced. Deuterium insertion study of 1 with N-deuteriopiperidine suggests that in DMSO the ring cleavage proceeds by initial addition of piperidine at the C(7) and C(2) carbons (2,7-addition) followed by subsequent fission of C(7)–C(8) bond of 1.
哌啶与 2,4,6-cyclooctatrien-1-one(1) 反应生成 8-piperidino-3,5,7-octatrien-2-one 和
苯乙酮。当使用
吡咯烷和吗啉时,会产生相应的 8-
氨基酮。1 与 N-
氘代
哌啶的
氘插入研究表明,在
DMSO 中,通过在 C(7) 和 C(2) 碳(2,7-加成)处初始添加
哌啶,随后 C(7) 裂变进行环裂解-C(8) 键为 1。