Addition of 2-Trimethylsilyloxyfuran to Catalytically Generated N-Methyleneamine Equivalents: Synthesis of 5-Aminomethyl-2,5-dihydrofuran-2-ones
摘要:
Catalytically generated N-methyleneamine equivalents from N-methoxymethylanilines, 1,3,5-triphenyl- and 1,3,5-tribenzylhexahydro-1,3,5-triazines in the presence of Lewis acid reacted with 2-trimethylsilyloxyfuran to give 5-aminomethyl-2,5-dihydrofuran-2-ones in high yield.
Deoligomerization: A New Route to Lactams from Unsaturated Amides via Radical Oligomerization
作者:Li Liu、Xing Wang、Chaozhong Li
DOI:10.1021/ol027428i
日期:2003.2.1
[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