One-pot synthesis of highly substituted poly(furopyrimidine)s via catalyst-free multicomponent polymerizations of diisocyanides, N, N'-dimethylbarbituric acid, and dialdehyde

Lichao Dong; Nan Li; Hang Yuan; Meng Wu

doi:10.1039/d1ra09336c

One-pot synthesis of highly substituted poly(furopyrimidine)s via catalyst-free multicomponent polymerizations of diisocyanides, N, N'-dimethylbarbituric acid, and dialdehyde

RSC Adv. 2022 Feb 22;12(10):6347-6351. doi: 10.1039/d1ra09336c. eCollection 2022 Feb 16.

Authors

Lichao Dong¹, Nan Li¹, Hang Yuan¹, Meng Wu¹

Affiliation

¹ Aerospace Institute of Advanced Materials & Processing Technology Beijing 100074 China 610557405@qq.com.

Abstract

In this work, the catalyst-free multicomponent polymerizations of diisocyanides, N,N'-dimethylbarbituric acid, and dialdehyde for highly substituted poly(furopyrimidine)s has been achieved. All the experimental conditions such as polymerization solvents, temperature and time were investigated in detail. Through the systematic optimization of the polymerization conditions, the obtained polymers could have molecular weights of up to 16 400 g mol^-1, and excellent yields (up to 84%) can be achieved. All the polymers were well characterized by gel permeation chromatography (GPC), nuclear magnetic resonance (NMR) and Fourier transform infrared spectroscopy. The thermal properties of the polymers were investigated and the decomposition temperature (T _d, 5%) was 277 °C.