New Synthesis of Semisquaric Acid Derivatives via Chlorinated N-(Cyclobutylidene)amines
摘要:
The synthesis and reactivity of new chlorinated N-(cyclobutylidene)amines leading to new synthetic pathways toward various substituted cyclobutenediones is described.
New Synthesis of Semisquaric Acid Derivatives via Chlorinated N-(Cyclobutylidene)amines
摘要:
The synthesis and reactivity of new chlorinated N-(cyclobutylidene)amines leading to new synthetic pathways toward various substituted cyclobutenediones is described.
Stereoselective reduction of N-(3-arylcyclobutylidene)amines
作者:Guido Verniest、Sven Claessens、Norbert De Kimpe
DOI:10.1016/j.tetlet.2006.03.023
日期:2006.5
blocks for organic synthesis, although these compounds are, among others, good precursors for interesting 3-arylcyclobutylamines. The reduction of various N-alkyl-N-(3-arylcyclobutylidene)amines with LiAlH4 yielded cis-substituted cyclobutylamines as the only stereoisomers. When borane was used as a reducingagent, an intermediate imine–borane complex could be isolated as a stable compound.