Perfluoroalkylbenzo crown ethers were readily prepared from the reaction of benzo crown ethers with sodium perfluoroalkanesulfinates in the presence of an oxidi
In the synthesis of l-phenyl-5-substituted amino-4-pyrazole N-alkyl amide,it was found for the first time that one of the two aromatic amido groups in the molec
The paper studies the chemical structures of eight synthetic9-β-D-xylofuranosyl-adenine-8-subatituted amino derivatives,by Fast AtomBombardment Mass Spectromet