Journal fur Praktische Chemie - Chemiker-Zeitung p. 114 - 118 (1992)
Update date:2022-08-03
Topics: Synthetic route Experimental terms
Katritzky, Alan R.
Pernak, J.
Fan, Wei-Qiang
A variety of 2,4,6-tri- and 2,4,5,6-tetrasubstituted 4H-1,3-oxazines (7a-i) were synthesized in excellent yields by the reaction of acetylenes (5) in the presence of aluminum chloride with N-<1-(benzotriazol-1-yl)alkyl>amides 4, themselves readily prepare
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