The room temperature 1,3-dipolar cycloaddition reactions of the boron azide, Cy2BN3 with the electron-poor acetylenes RCO2CCCO2R, EtCCCOMe and HCCP(O)Ph2 afforded new 1,2,3-triazoles. In the case of RCO2CCCO2R, a new macrocyclic product was isolated with loss of the R group.
室温下,
硼叠氮化物Cy2BN3与电子贫乏的
炔烃RCO2CCCO2R、EtCCCOMe和HCCP(O)Ph2发生了1,3-取代环加成反应,形成了新的
1,2,3-三唑。在RCO2CCCO2R的情况下,分离出了一种新的大环产物,并伴随R基团的丢失。