evaporated.图片Amixtureofmaterial(2.0g)inafewmLofDMFwasaddedtoacooledstirringsuspensionofanhydroussodiumcyanide(0.50g)in3mLofdryDMSO.Themixturewasheatedovernightat80℃。

Thenitwaspouredintowater(100mL)andtheproductwasextractedwithdichloromethane.Thecombinedextractswerewashedwater，driedMgSO4andconcentratedtogivedesiredcompound图片CNA在充满N2的手套箱向具有封口塞的小瓶中依次加入NiCl2·6H2O(11.9mg。

allowthereactionmixturetocooltoroomtemperature.Separatethenewupperlayerbyusingseparatingfunnel.WashthenewupperlayerwithH2O(2x10mL).Drythenewupperlayeroversodiumsulfate.IsolatetheproductbyfiltrationfromNa2SO4.2.5磺酸酯的卤代（NaX。