Unusual acid-induced heterocyclisation of caryophyllene-type α-amino oximes: X-ray structure of (1S,2S,5R,8S)-1,4,4,8-tetramethyl-8-morpholin-4-yl-11-oxa-10-azatricyclo[7.2.2.02,5]tridec-9-ene
Abstract
The acid-catalysed cyclisation of caryophyllene-type α-amino oximes results in the formation of new bridged heterocycles with the 5,6-dihydro-4H-[1,2]oxazine moiety.