108047-41-2Relevant articles and documents
A NEW SYNTHESIS OF CYCLIC UREAS FROM AROMATIC DIAMINES BY SELENIUM-ASSISTED CARBONYLATION WITH CARBON MONOXIDE
Yoshida, Tohru,Kambe, Nobuaki,Murai, Shinji,Sonoda, Noboru
, p. 3037 - 3040 (1986)
Aromatic cyclic ureas have been synthesized in good yields from o-amino or o-aminoalkyl substituted aromatic amines by the reaction with carbon monoxide using selenium.
A NEW SYNTHESIS OF HETEROCYCLES VIA CARBONILATION OF AMINES WITH CARBON MONOXIDE IN THE PRESENCE OF SELENIUM
Yoshida, Tohru,Kambe, Nobuaki,Ogawa, Akiya,Sonoda, Noboru
, p. 137 - 148 (2007/10/02)
Amines which contain a second functional group in the appropriate position react with carbon monoxide in the presence of selenium to form heterocyclic derivatives in which carbon monoxide is incorporated.For instance, diamines, aminoalcohols, and their related compounds undergo carbonylation to give cyclic ureas, urethanes and the corresponding carbonylated compounds.For diamines and amino alcohols with more than two carbon atoms between the functional groups, intermolecular carbonylative coupling takes place competing with the intramolecular reaction.High selectivity has been attained under specified reaction conditions.Anilines having cyano or acetyl groups on the ortho position afford new classes of selenium-containing heterocycles.In these reactions, carbamoselenoate has been suggested as the common key intermediate.
