Triaryl-1,3,5-triazinane-2,4,6-triones (Isocyanurates) Peripherally Functionalized by Donor Groups: Synthesis and Study of Their Linear and Nonlinear Optical Properties
The linearoptical (LO) and nonlinearoptical (NLO) properties of a series of isocyanuratesfunctionalized by donor arms at the periphery are reported herein. These octupolar derivatives were obtained in a straightforward way from commercial isocyanate derivatives and were fully characterized. Although several of these compounds are known, those that exhibited the largest NLO activities are all new
Yttrium dialkyl supported by a silaamidinate ligand: synthesis, structure and catalysis on cyclotrimerization of isocyanates
作者:Deshuai Liu、Dahai Zhou、Hao Yang、Jianfeng Li、Chunming Cui
DOI:10.1039/c9cc06282c
日期:——
A sterically demanding silaamidine (ArN = Si(L)NHAr) ligand was synthesized and employed for the preparation of a yttrium dialkyl complex, which catalytically enabled the cyclotrimerization of isocyanate with high activity and excellent functional group tolerance.
An expeditious method for the selective cyclotrimerization of isocyanates initiated by TDAE
作者:Alain G. Giuglio-Tonolo、Cédric Spitz、Thierry Terme、Patrice Vanelle
DOI:10.1016/j.tetlet.2014.03.045
日期:2014.4
We developed a rapid and green synthesis of various isocyanurates by cyclotrimerization of isocyanates using TDAE (tetrakis(dimethylamino)ethylene). TDAE displays excellent performance in catalytic quantities, affording the corresponding trimer of isocyanates very rapidly, under air and at room temperature in good to excellent yields.
A Well‐Defined Calcium Compound Catalyzes Trimerization of Arylisocyanates into 1,3,5‐Triarylisocyanurates
作者:Rohit Kumar、Vishal Sharma、Shailja Jain、Himanshu Sharma、Kumar Vanka、Sakya S. Sen
DOI:10.1002/cctc.202101788
日期:2022.6.8
A well-defined calcium compound (2) was prepared using a tetra-dentate ligand. 2 was found to catalyze the cyclotrimerization of aryl isocyanates to isocyanurates under ambient conditions with excellent yields.