Acyliminium ions derived from the rearrangement of Bischler-Napieralski cyclisation products
作者:Harry Heaney、Khamis F. Shuhaibar
DOI:10.1016/s0040-4039(00)77023-7
日期:1994.4
Reactions of pyrophosphoryl chloride with amides derived from arylethylamines and related compounds with 2-methoxycarbonylbenzoyl chloride give the expected Bischler-Napieralski products in good yields which then isomerise readily to afford N-acylaminol ethers under base catalysis; acyliminium ions are then generated using trimethylsilyl triflate and captured, for example with allyltrimethylsilane