The high toxicity of isocyanate species in the workplace demands development sensitive techniques for detection isocyanates to protect workers from adverse health effects.

Substituted imide and amide derivatives were conveniently prepared from the reaction of isocyanates with o-iodobenzoates and haloarenes catalyzed by the NiBr2(dppe)/dppe/Zn system in moderate to good yields with excellent tolerance of functional groups.

The rhodium(III)-catalyzed direct amidation of indoles and pyrroles with aryl and alkyl isocyanates is described. These transformations provide a facile and efficient construction of C2-amidated N-heterocyclic scaffolds.

The manuscript presents the latest data on market of isocyanates, methods for producing their eco-friendly substitutes and toxicity phosgene used in isocyanate production.

Lignin is the second most abundant natural polymer that exhibits a complex structure with various amounts of aliphatic and phenolic hydroxides. The use lignin as source polyol to make lignin-based polyurethanes (PUs) has been subject intense studies in recent years. It well known there difference reactivity between aromatic hydroxyl groups towards isocyanates. For simple model systems using con...