Zheng, Leizhi; Yang, Guoqiang; Liu, Jia; Jiang, Bowen; Yu, Ting; Hu, Xingbang; Zhang, Zhibing published the artcile< Efficient chemical fixation of CO2 to form switchable ionic liquid to synthesize benzimidazolones under mild conditions>, Application of C19H34O2, the main research area is dihydrobenzimidazolone green preparation; benzene diamine carbon dioxide carbonylation catalyst diazabicyclononene.
In this work, a novel pathway to synthesize benzimidazolone derivatives I [R = 5-Me, 5-MeO, 5,6-di-Me] via the carbonylation of o-phenylenediamines with carbon dioxide under mild conditions (e.g., 50°C, 0.5 MPa) in the presence of 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) was reported. In this progress, the DBN, acting as superbase, could form strong intermol. hydrogen bonds with o-phenylenediamines. The carbon dioxide was chem. fixed to form switchable ionic liquids (SILs). Then, CH2Br2 as a dehydrant easily involved parallel attack carbamates salts to form leaving group. To the best of our knowledge, this protocol provided a sustainable technique for the production of benzimidazolones under mild conditions.
Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Aromatic diamines Role: RCT (Reactant), RACT (Reactant or Reagent). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics