Chemistry of Heterocyclic Compounds p. 507 - 510 (1981)
Update date:2022-08-04
Topics:
Vakhatova, G. M.
Anisimova, O. S.
Yakhontov, L. N.
2-(Carbethoxycyanomethylene)-4,6-dimethoxy-1,2-dihydro-s-triazine reacts with hydrochloric acid to give 2-(carbethoxycyanomethylene)-4,6-dioxohexahydro-s-triazine (I) and with boric acid to give a mixture of the first compound with 2-(carbethoxycyanomethylene)-4-oxo-6-methoxy-1,2,3,4-tetrahydro-s-triazine.The products of the reaction of 2,4,6-tris(dicarbethoxymethylene)hexahydro-s-triazine with aniline are 2-(dicarbanilidomethylene)-4-methyl-6-phenylamino-1,2-dihydro-s-triazine (43percent), N,N'-diphenylurea (18percent), and malonic acid dianilide (18percent).In aqueous dioxane in the presence of Al2O3 this compound is converted to 2,4-bis(dicarbethoxymethylene)-6-methyl-1,2,3,4-tetrahydro-s-triazine, which reacts with liquid ammonia to give 2-(dicarbethoxymethyl)-4-amino-6-methyl-s-triazine.
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Doi:10.1039/DT9800002182
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(2013)