851659-96-6Relevant articles and documents
Synthesis of 2-substituted thiopyrano[3,2-b][1,4]benzoxazine-2,3-dicarboxylic acid dimethyl esters
Kamila, Sukanta,Zhang, Hongming,Zhu, Dumming,Biehl, Edward R.
, p. 579 - 589 (2007/10/03)
The titled compounds were prepared by the reaction of 4H-benzo[1,4]oxazin-3-thiones with dimethyi ace tylenedicarboxylate. The 3-thione intermediates were obtained by treating 4-methyl-4H-benzo[1,4]-oxazin-3-ones with P2S5 followed b