[reaction: see text] Triethylborane-initiated atom transfer radical oligomerization of N-allyl or N-(3-butenyl)iodoacetamides followed by treatment with hydrochloric acid and subsequent neutralization with K(2)CO(3) led to the formation of the corresponding 5-hydroxyl-substituted delta-lactams or caprolactams, respectively. This oligomerization-deoligomerization sequence serves as an alternative to
[反应:参见文本] N-烯丙基或N-(3-
丁烯基)
碘乙酰胺的三乙基
硼烷引发的原子转移自由基低聚,然后用
盐酸处理,随后用K(2)CO(3)中和导致形成相应的5-羟基取代的δ-内酰胺或己内酰胺。该低聚-解聚序列可替代相应的分子内环化反应。