34403-38-8Relevant articles and documents
Synthesis, structure, and two polymorphs of 4-((1,3-Dioxoisoindolin-2-yl) methyl)-1-methoxypyridinium tetrafluoroborate
Valente, Edward J.,Stewart, Emily H.,McVaugh, James P.,Kramer, Wolfgang H.
, p. 48 - 52 (2011)
4-((1,3-Dioxoisoindolin-2-yl)methyl)-1-methoxypyridinium tetrafluoroborate, C15H13BF4N2O3, 1, was obtained by alkylation of the corresponding N-oxide and has been characterized by 1H and s
Direct Synthesis of Cyclic Imides from Carboxylic Anhydrides and Amines by Nb2O5 as a Water-Tolerant Lewis Acid Catalyst
Ali, Md. A.,Moromi, Sondomoyee K.,Touchy, Abeda S.,Shimizu, Ken-Ichi
, p. 891 - 894 (2016/03/15)
In the 20 types of heterogeneous and homogenous catalysts screened, Nb2O5 showed the highest activity for the synthesis of N-phenylsuccinimide by dehydrative condensation of succinic anhydride and aniline. Nb2O5 was used in the direct imidation of a wide range of carboxylic anhydrides with NH3 or amines with various functional groups and could be reused. Kinetic studies showed that the Lewis acid Nb2O5 catalyst was more water tolerant than both the Lewis acidic oxide TiO2 and the homogeneous Lewis acid ZrCl4, which resulted in higher yields of imides through the use of Nb2O5. Int-imidation tactics: A general method for the direct synthesis of cyclic imides from cyclic anhydrides with amines (or ammonia) under solvent-free conditions is reported. Kinetic studies indicate that the Lewis acid sites of Nb2O5 are highly water tolerant, which results in high catalytic activity for imidation even in the presence of water formed during the reaction. The catalyst can be recovered and reused four times without a marked decrease in yield.
Synthesis of cyclic imides from simple diols
Zhang, Jian,Senthilkumar, Muthaiah,Ghosh, Subhash Chandra,Hong, Soon Hyeok
supporting information; experimental part, p. 6391 - 6395 (2010/11/05)
There's something imide so strong: Cyclic imides were synthesized from simple diols with primary amines in a single step using an in-situ-generated ruthenium catalytic system. The atom-economical and operatively simple syntheses of succinimides, phthalimides, and glutarimides, which are important building blocks in natural products and drugs, was also demonstrated. Copyright