Reactions with 3, 1-benzoxazin-4-ones. 3. Reactions of 6, 8-dibromo-2-methyl-3, 1-benzoxazin-4-ones with amines

…, NA Shams, MR Salem, SA Emara

Index: Ismail, M. Fekry; Shams, Nabil A.; Salem, M. R.; Emara, S. A. Journal of Organic Chemistry, 1983 , vol. 48, p. 4172 - 4174

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Citation Number: 8

Abstract

8i, X= CH, j, X= O were converted to the corresponding 2-methylquinazolin-4-ones (7a-h) by thermal cyclodehydration of the melt at about 250" C (Table 11). These products of cyclodehydration were also obtained as expected by fusion of 5 with an equivalent amount of the appropriate amine at about 250" C.