S 53 Shcherbakov, K. V. Transformations of 3-(1-amidoethylidene)-5,6,7,8-tetrafluorobenzopyran-2,4-dione with hydrazines [Text] / K. V. Shcherbakov, Ya. V. Burgart, V. I. Saloutin // Heterocycles. - 2009. - Vol. 78, № 2. - P347-356. - Bibliogr. : p. 356 (16 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ |