Reacao De Termociclizacao
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1. Síntese de diazatriciclos e propriedade solvatocrômica de 1,10-fenantrolinas
This work describes a new methodology for a variety of diazatricycles from the termocyclisation of phenylenediamine-bis(methylene Meldrumss acid) derivatives. The key intermediates 4,5-dimethyl-1,2-bis[(2,2-dimethyl-4,6-dioxo- 1,3-dioxan-5-ylidenemethyl)amino]benzene (58), 5-chloro-1,3-bis[(2,2-dimethyl-4, 6-dioxo-1,3-dioxan-5-ylidenemethyl)amino]benzene (62
Publicado em: 2003