作者:Laurence Menguy、Bruno Drouillat、François Couty
DOI:10.1016/j.tetlet.2015.10.036
日期:2015.11
N-Alkyl azetidines react with triphosgene (BTC) following two possible pathways: N-alkyl ring scission or ring cleavage, to give cyclic or acyclic N-carbamoyl chlorides. Predominance of one pathway over the other is governed by the nature of the substituents on the azetidine ring and on the nitrogen atom as well as by the relative stereochemistry of the ring substituents, and is examined in detail
N-烷基氮杂环丁烷按照以下两种可能的途径与三光气(BTC)反应:N-烷基环断裂或环断裂,以生成环状或无环的N-氨基甲酰氯。一种途径相对于另一种途径的优势由氮杂环丁烷环和氮原子上的取代基的性质以及环取代基的相对立体化学决定,并进行了详细研究。鉴定了某些氮杂环丁烷的优先反应途径,从而导致了新的功能化结构单元,这些基础结构进一步细分为五元或六元尿素或氮杂环丁烷尿素。