作者:Peter J. S. S. van Eijk、Cor Overkempe、Willem P. Trompenaars、David N. Reinhoudt、Lauri M. Manninen、Gerrit J. van Hummel、Sybolt Harkema
DOI:10.1002/recl.19881070202
日期:——
yield the trans four-membered cyclic nitrones 12–13 upon reaction with 6. Nitroalkene 4i reacts with 6c to give a 1:1 mixture of the cis and trans four-membered cyclic nitrones 9g and 13i. The trans stereochemistry of trans-N,N-diethyl-2, 3-dihydro-3-(2-methoxynaphthalenyl)-2-methyl-4-phenyl-2-azetecarboxamide 1-oxide (13k) was elucidated by means of X-ray analysis. Only from the reaction of 1-nitrocyclopentene