132651-93-5Relevant articles and documents
Chemoselectivity in coupling of azides with thioacids in solution-phase and solvent-free conditions
Nagarajan, Sangaraiah,Shanmugavelan, Poovan,Sathishkumar, Murugan,Priyadharshini, Namachivayam,Sudakar, Padmanaban,Ponnuswamy, Alagusundaram
, p. 668 - 680 (2013/01/15)
Solvent-free rapid coupling of monothiocarboxylic acid with azide affords carboxamide chemoselectively. Triphenyl phosphine included as an additive influences the chemoselectivity, yielding carboxamide and thioamide. Similar variation in the chemoselectivity is observed in the absence and presence of triphenyl phosphine in solution-phase methodology. Rapidity and ecofriendliness of the solvent-free approach to yield the products in just 15min is noteworthy compared to the solution-phase protocol, which has a long reaction time (1-3 days).
Reaction of functionalized carbodiimide with α-amino ester: A selective synthesis of 2,3,5-trisubstituted imidazol-4-ones
Li, Hong-Xia,Sun, Yong,Ding, Ming-Wu
experimental part, p. 4328 - 4336 (2009/04/11)
3-(Ethoxycarbonylmethylene)-2-(arylimino)-imidazol-4-ones 5 were synthesized selectively by reaction of α-amino ester with carbodiimides 4, which were obtained from aza-Wittig reaction of iminophosphoranes 2 with aromatic isocyanates. Copyright Taylor & F
REACTIVITY OF IMINOPHOSPHORANES TOWARDS SOME SYMMETRICAL DICARBONYL DICHLORIDES : SYNTHESES AND MECHANISMS
Aubert, Thierry,Farnier, Michel,Guilard, Roger
, p. 53 - 60 (2007/10/02)
In situ generated iminophosphoranes 1 react with dicarbonyl dihalides 2a-b and 3a-c to give known or new nitrogen heterocycles.The proposed mechanisms involve elimination of either triphenyl-phosphine oxide or dichlorotriphenylphosphorane depending upon both the iminophosphorane and the dicarbonyl compound.
