88793-67-3Relevant academic research and scientific papers
THIONES AS SUPERDIPOLAROPHILES
Huisgen, Rolf,Langhals, Elke
, p. 5369 - 5372 (2007/10/02)
According to kinetic measurements,the 1,3-cycloadditions of diphenyl-diazomethane to thioketones are much faster than those to α,β-unsaturated carbonyl compounds and nitriles previously regarded as record dipolarophiles.The primary cycloadducts are tetrasubstituted 1,3,4-thiadiazolines which extrude N2 and furnish thiiranes via thiocarbonyl ylides.
NEW THIOCARBONYL YLIDES FROM THIOBENZOPHENONE
Huisgen, Rolf,Xingya, Li
, p. 2363 - 2368 (2007/10/02)
Thiobenzophenone is converted to 1,3,4-thiadiazolines by reaction with diazoethane, phenyldiazomethane or diphenyldiazomethane at -78 deg C.Extrusion of nitrogen from the thiadiazolines furnishes thiocarbonyl ylides which, in turn, undergo electrocyclic r
