Reactions of diazo compounds with tetrasubstituted 1,3-cyclobutanediones and the corresponding dithiones. Isolation of bis-.DELTA.3-1,3,4-thiadiazolines from the dipolar addition of diazomethane to the dithiones and their thermal decomposition into diepisulfides
作者:A. Paul Krapcho、D. R. Rao、M. P. Silvon、B. Abegaz