Efficient synthesis of symmetrical and unsymmetrical acyclic imides catalyzed by reusable 12-tungstophosphoric acid under thermal conditions and microwave irradiation
An efficient and environmentally friendly procedure has been developed for the synthesis of symmetrical and unsymmetrical acyclic imides by the reaction of nitriles with acyclic anhydrides in the presence of catalytic amounts of 12-tungstophosphoric acid (H3PW12O40) under thermal conditions and microwave irradiation. It was found that microwave improves the yields and significantly reduces the reaction times. Furthermore, the catalyst could be recovered and reused several times without decrease in its activity.
A novel one-pot synthesis of unsymmetrical acyclic imides
A new and convenient method was found for the one-pot synthesis of symmetrical and unsymmetrical linear imides by reaction of aliphatic and aromatic nitriles with acyclic carboxylic anhydrides in the presence of silica sulfuric acid as an active and recyclable reagent. Georg Thieme Verlag Stuttgart.
Habibi, Zohreh,Salehi, Peyman,Zolfigol, Mohammad Ali,Yousefi, Maryam
p. 812 - 814
(2008/01/03)
INFLUENCE OF THE ACID - BASE PROPERTIES OF NITRILES OF THE REACTIONS BETWEEN RCN AND R'COOH, BOTH COORDINATED ON Sn(IV)
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Slavinskaya, R. A.,Sumarokova, T. N.,Nurakhynova, M.,Dolgova, N. A.
p. 332 - 337
(2007/10/02)
Substituted mercapto acid amides and their use
Substituted mercapto acid amides are prepared, and are useful as immunoregulants for correcting an imbalance of immune homeostasis, particularly as immunostimulants in the treatment of autoimmune and immune deficient diseases and disorders.
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(2008/06/13)
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