94039-07-3Relevant academic research and scientific papers
Cycloadditions, 11. Intramolecular Diels-Alder Reactions of Allenecarboxanilides; Synthesis and Thermolysis of Vinylidenemalondiamides
Diehl, Klaus,Himbert, Gerhard
, p. 3812 - 3825 (2007/10/02)
By known methods, phosphorus ylides are synthesized, which besides a tertiary arylcarbamoyl moiety bear an acyl group (see 2a - c), a thiocarbamoyl group (see 3), and a second, secondary carbamoyl group (see 5a - i).Only the latter compounds react with ke
Thermolysis of Allene-1,1-dicarboxamides: Acceleration of the Intramolecular Diels-Alder Reaction by Intramolecular Hydrogen Bonding and a Novel Bicyclo- to Bicyclo-alkadiene Rearrangement
Himbert, Gerhard,Diehl, Klaus,Maas, Gerhard
, p. 900 - 901 (2007/10/02)
Allene carboxanilides (5) with an additional geminal secondary carbamoyl group undergo intramolecular Diels-Alder reactions at rather low temperature (80 deg C) to furnish the tricyclic lactams (6), which, in turn, isomerize to give the tricyclic lactams (8) at about 130 deg C.
