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