The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 1-(tert-Butyl)-1H-pyrrole-2,5-dione( cas:4144-22-3 ) is researched.Product Details of 4144-22-3.Matsumoto, Akikazu; Kubota, Toru; Otsu, Takayuki published the article 《Synthesis and characterization of poly(N-tert-alkylmaleimides). 1. Radical polymerization of N-tert-butylmaleimide leading to a less-flexible poly(substituted methylene)》 about this compound( cas:4144-22-3 ) in Polymer Bulletin (Berlin, Germany). Keywords: butylmaleimide polymerization kinetics; polybutylmaleimide flexibility polymerization reactivity. Let’s learn more about this compound (cas:4144-22-3).
In presence of AIBN, N-tert-butylmaleimide (I) readily polymerized in spite of the bulky N-substituent to give a high-mol.-weight, semiflexible polymer. The rate of polymerization (Rp) in C6H6 was given by Rp = k[AIBN]0.51[I]1.4, and the overall activation energy was 99.6 kJ/mol. The polymerization of I to high mol. weight was assumed to result from a decrease in the rate of bimol. termination between rigid polymer radicals bearing bulky substituents. The flexibility of the polymer chain was examined by viscometric and light scattering methods, and the flexibility effect on the polymerization reactivity was discussed.
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Reference:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics