title: [Condensation of squaric acid 1,2-bisamides with diethyl malonate. 7. Report on polycarbonyl compounds].
mesh_terms: D000577:Amides; D001381:Azepines / Q000138:chemical synthesis; D055598:Chemical Phenomena; D002621:Chemistry; D003503:Cyclobutanes; D004952:Esters; D008314:Malonates
chemical_list: D000577:Amides; D001381:Azepines; D003503:Cyclobutanes; D004952:Esters; D008314:Malonates
vernacular_title: Notiz zur Kondensation von Quadratsäure-1,2-bisamiden mit Malonsäure-diäthylester. 7. Uber Polycarbonylverbindungen.