title: New synthesis of semisquaric acid derivatives via chlorinated N-(cyclobutylidene)amines.
abstract: The synthesis and reactivity of new chlorinated N-(cyclobutylidene)amines leading to new synthetic pathways toward various substituted cyclobutenediones is described.
authors.affiliation: Department of Organic Chemistry, Faculty of Agricultural and Applied Biological Sciences, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
authors.forename: Guido
authors.initials: G
authors.lastname: Verniest
authors.forename: Jeroen
authors.initials: J
authors.lastname: Colpaert
authors.forename: Karl W
authors.initials: KW
authors.lastname: Törnroos
authors.forename: Norbert
authors.initials: N
authors.lastname: De Kimpe