海量图书期刊资源，随时随地畅享阅读乐趣
ChemInform Abstract: CYCLOADDITIONS OF KETENES WITH CYCLIC CARBODIIMIDESBRADY, W. T.; SHIEH, C. H. · Chemischer Informationsdienst · 1985
Halogenated ketenes. 39. A new synthesis for substituted coumarinsWilliam T. Brady; C. H. Shieh · 1984