139059-79-3Relevant academic research and scientific papers
Preparation and Cycloaddition Chemistry of Thio- and Selenocarbonyls Derived from Reaction of Elemental Sulfur and Selenium with Stabilized α-Halo Anions
Abelman, Matthew M.
, p. 7389 - 7392 (2007/10/02)
Reaction of diethyl chloromalonate with Cs2CO3 in the presence of elemental S8 or Sen generates the corresponding diethyl thioxo- or selenoxomalonates which are subsequently trapped in situ with various 1,3-dienes.Similarly, the chalcogen carbonyls can be prepared from other halogenated compounds using DBU as the base and effectively trapped in Diels-Alder fashion with 2,3-dimethyl-1,3-butadiene (Table 2).
