通过Biotage微波合成仪进行氮杂克莱森Claisen重排合成[5

[5,6]-Fused pyridocoumarins are prepared through aza-Claisen rearrangement and subsequent in situ cyclization of 6-propargylaminocoumarins under microwave irradiation in the presence of boron trifluoride diethyl etherate in N,N-dimethylformamide. During this process demethoxycarbonylation is observed in the corresponding 4-carbomethoxycoumarin derivatives. Biotage 微波合成仪 Initiator+ Biotage 微波合成仪 Initiator Biotage 微波合成仪 Initiator+ Robot 8 Biotage 微波合成仪 Initiator+ Robot 60