124617-66-9Relevant academic research and scientific papers
BISDIENOPHILES IN THE DIELS-ALDER REACTION. V. KINETICS AND THERMOCHEMISTRY OF THE REACTION OF N,N'-BISDICHLOROMALEIMIDES WITH 1,3-DIPHENYLISOBENZOFURAN
Adigezalov, N. R.,Kiselev, V. D.,Konovalov, A. I.
, p. 1558 - 1562 (2007/10/02)
A series of N,N'-bisdichloromaleimides, which are potential bisdienophiles in the production of high-molecular polyadducts in the Diels-Alder reaction with bisdienes, were synthesized.The rate constants and activation parameters, determined for the first stage in the formation of the monoadduct, and the enthalpy of the reaction with 1,3-diphenylisobenzofuran show that the synthesis of polyadducts based on N,N'-bisdichloromaleimides, which are potential fire-proofing agents, is associated with unfavorable kinetic and thermodynamic characteristics.
N,N'-DIMALEIMIDES IN THE DIELS-ALDER REACTION. I. KINETICS OF THE UNCATALYZED REACTION WITH trans,trans-1,4-DIPHENYLBUTADIENE AND 1,3-DIPHENYLISOBENZOFURAN
Adigezalov, N. R.,Kiselev, V. D.,Konovalov, A. I.
, p. 486 - 490 (2007/10/02)
The kinetic behavior of a series of diimides, in which the maleimide rings are linked through various bridges, in the Diels-Alder reaction with trans,trans-1,4-diphenylbutadiene and 1,3-diphenylisobenzofuran was studied.The energies of charge transfer were determined and the electron affinities were calculated by spectrophotometry of the charge-transfer complexes between the imides and hexamethylbenzene.Although the rates of reaction of the bisimides with the investigated dienes differ by seven orders of magnitude, the general type of "diene-donor, dienophile-acceptor" reaction is preserved.
N,N'-DIMALEIMIDES IN THE DIELS-ALDER REACTION. III. KINETICS AND THERMOCHEMISTRY OF FORMATION OF MONO- AND DIADDUCTS WITH 1,3-DIPHENYLISOBENZOFURAN
Adigezalov, N. R.,Kiselev, V. D.,Konovalov, A. I.
, p. 1033 - 1039 (2007/10/02)
The rates were determined and the activation parameters were calculated for the reactions of the monoadducts of N-X-N'-dimaleimides with 1,3-diphenylisobenzofuran.The formation rates of the mono- and diadducts were analyzed.The enthalpies of formation of the adducts were determined by a thermochemical method.The small difference in the enthalpies of the two consecutive reactions is regarded as evidence for the theory of the weak conjugation in bisimides.The kinetic behavior of the bisimides in the investigated reactions was examined with regard to the three main reactivity factors.
