Novel hyperbranched molecules containing pyrrole units from diacetylene compounds was written by Godinez Sanchez, J.;Fomina, L.;Rumsh, L.. And the article was included in Polymer Bulletin (Heidelberg, Germany) in 2010.Category: esters-buliding-blocks This article mentions the following:
Novel hyperbranched mols. containing pyrrole units were obtained from ortho-, meta-, and para-diaminodiphenyldiacetylenes, as AB2 type monomers by one-step polymerization Diacetylenic fragments reacted with terminal aminogroups in the presence of copper chloride to give pyrrole units. Diaminodiphenyldiacetylene monomers have been synthesized from ethynilanilines in three steps. The novel monomers and hyperbranched mols. were characterized by NMR, IR and thermal anal. In the experiment, the researchers used many compounds, for example, tert-Butyl (3-ethynylphenyl)carbamate (cas: 185619-66-3Category: esters-buliding-blocks).
tert-Butyl (3-ethynylphenyl)carbamate (cas: 185619-66-3) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Category: esters-buliding-blocks
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics