A SIMPLE SYNTHESIS -HYDRO-3-PHENYL-4H,5H-PYRANO[3,2-E]-[1,2]OXAZINES,7A-TETRAHYDRO-3-PHENYL-4H-FURO[3,2-E][1,2]OXAZINES AND 6-ALKYL-3-PHENYL-1,5,2-DIOXAZINES
B. Venugopalan et al., A SIMPLE SYNTHESIS -HYDRO-3-PHENYL-4H,5H-PYRANO[3,2-E]-[1,2]OXAZINES,7A-TETRAHYDRO-3-PHENYL-4H-FURO[3,2-E][1,2]OXAZINES AND 6-ALKYL-3-PHENYL-1,5,2-DIOXAZINES, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 35(5), 1996, pp. 475-477
The tide compounds 2a-e and 6-butoxy-3-phenyl-1,2-oxazine (3) have bee
n prepared using a hetero Diels-Alder reaction of nitrosoalkenes, gene
rated in situ from alpha-haloacetophenone oximes. A simple synthesis o
f 6-alkyl-3-phenyl-1,5,2-dioxazines (5a-b) is also reported.