10269-99-5Relevant academic research and scientific papers
CYCLIC CARBALKOXY AMINIMIDES. SYNTHESIS AND THERMAL DECOMPOSITION TO GIVE N,N-DIMETHYLAMINO ISOCYANATE
Senet, Jean-Pierre,Vergne, Guyselaine,Wooden, Gary P.
, p. 6319 - 6322 (2007/10/02)
Five membered ring carbalkoxy aminimides are prepared from 1,1-dimethylhydrazine and α-chloroalkyl chloroformates in three steps.Upon heating, these aminimides give high yields of N,N-dimethylamino isocyanate.This intermediate dimerizes or can be trapped in the presence of a nucleophile.
Di- and Trimeric Dimethylaminoisocyanate. Structures and Spectra
Zuern, V.,Schwarz, W.,Rozdzinski, W.,Schmidt, A.
, p. 81 - 90 (2007/10/02)
N,N-Dimethyl-N',N'-bis(trimethylsilyl)hydrazine reacts with fluorophosgene to yield 5,5-dimethyl-3-dimethylamino-2,4-dioxo-5-azonia-imidazolidide (1).With phosgene, 1-methyl-2-chloroformyl-4-dimethylamino-1,2,4-triazolidine-3,5-dione (5) can be prepared.The thermal decomposition of N,N-dimethyl-N'-carbomethoxy-N'-trimethylsilyl-hydrazine gives 1,3,5-tris(dimethylamino)-1,3,5-hexahydrotriazine-2,4,6-trione (2) and 1,2-dimethyl-4-dimethylamino-1,2,4-triazolidine-3,5-dione (3). 2 can also be prepared by thermal decomposition of N,N-dimethyl-N'-carbomethoxy-N'-fluoroformylhydra zine (4).The crystal and molecular structures of 1 and 2 were determined by X-ray analysis.The 1H NMR and vibrational data of 1-5 were communicated.The mass spectra of 1-3 were measured and discussed. - Keywords: N-Heterocyclic Compounds
