摘要
A series of selena aza crown ether is condensed by 1,5 bis(p tosylsulphonylamino) 3 selena pentane with ditosylates or dihalides in K 2CO 3/DMF or NaH/DMF. The yields are about 30% 60%.
A series of selena aza crown ether is condensed by 1,5 bis(p tosylsulphonylamino) 3 selena pentane with ditosylates or dihalides in K 2CO 3/DMF or NaH/DMF. The yields are about 30% 60%.
