Synthesis of N-protected allylic amines from allyl ethers

Ji Duck Kim, Min Hee Lee, Gyoonhee Han, Hyunju Park, Ok Pyo Zee, Young Hoon Jung

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24 Citations (Scopus)


A synthetic method for N-protected allylic amines from allyl ethers using chlorosulfonyl isocyanate (CSI) is presented. The reaction of 4-phenylbut-2-enyl methyl ether (1i) with CSI afforded methyl N-(1-benzylallyl)carbamate (2i) and methyl N-(4-phenylbut-2-enyl)carbamate (3i) in a 1:1.1 ratio. On the other hand, 1-benzylallyl methyl ether (1k) afforded the same products in a 4.6:1 ratio. The reactions of 1,4-diphenylbut-2-enyl methyl ether (1p) and (1-benzylcinnamyl) methyl ether (1q) with CSI gave only one product, methyl N-(1-benzylcinnamyl)carbamate (2p), due to the steric hindrance of the phenyl ring and the formation of a stable conjugated product. We also examined the reactions of diene ethers (4) with CSI.

Original languageEnglish
Pages (from-to)8257-8266
Number of pages10
Issue number39
Publication statusPublished - 2001 Sept 24

Bibliographical note

Funding Information:
The authors wish to acknowledge the financial support of the Korea Research Foundation made in the program year of 1998.

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry


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