100281-67-2Relevant academic research and scientific papers
1,3-CYCLOADDITIONS OF 2,2,4,4-TETRAMETHYLCYCLOBUTANE-1-ONE-3-THIONE S-METHYLIDE
Huisgen, Rolf,Mloston, Grzegorz,Fulka, Claudia
, p. 2207 - 2212 (2007/10/02)
The 1,3,4-thiadiazoline 2, prepared from 2,2,4,4-tetramethylcyclobutane-1-one-3-thione and diazomethane, loses N2 at 40 deg C; the thiocarbonyl ylide 5 is a transient intermediate which in situ undergoes 1,3-dipolar cycloadditions to electron-deficient di
