Cyclocondensation Reaction of Mesoionic 4-Trifluoroacetyl-1,3-oxazolium-5-olates with Hydroxylamine affording 6-Trifluoromethyl-5,6-dihydro-4H-1,2,4-oxadiazin-6-ols
摘要:
Mesoionic 4-trifluoroacetyl-1,3-oxazolium-5-olates (1) undergo tandem addition of hydroxylamine to afford 6-trifluoromethyl-1,2,4-oxadiazin-6-ols (3) in high yields.
Cyclocondensation Reaction of Mesoionic 4-Trifluoroacetyl-1,3-oxazolium-5-olates with Hydroxylamine affording 6-Trifluoromethyl-5,6-dihydro-4H-1,2,4-oxadiazin-6-ols
Mesoionic 4-trifluoroacetyl-1,3-oxazolium-5-olates (1) undergo tandem addition of hydroxylamine to afford 6-trifluoromethyl-1,2,4-oxadiazin-6-ols (3) in high yields.