RECENTLY, SOLID ACIDS HAVE BEEN USED AS ECO- AND ENVIRONMENTALLY FRIENDLY CATALYSTS IN VARIOUS ORGANIC TRANSFORMATIONS. THE OPTION OF REUSABILITY OF THE SOLID CATALYST, NON TOXICITY, AND EASIER WORK UP OF THE REACTIONS CATALYZED BY THESE CATALYSTS MAKE THEM MUCH FAVORITE.1, 3 DIBROMO-5, 5–DIMETHYL....

RECENTLY, APPLICATIONS OF MULTIFUNCTIONAL CALATYSTS HAS REPORTED IN THE SYNTHESIZES THAT HAVE MUTI-STEP PROCESSES TO COMPLETING IN ONE-POT REACTION, SUCH AS SYNTHESIS OF TRANS-B-LACTAMS USING A SIMPLE MULTIFUNCTIONAL PHOSPHONIUM FLUORIDE CATALYST...

PHENYL SULFONIC ACID FUNCTIONALIZED MESOPOROUS SBA-15 SILICA (SBA-15-PH-SO3H) WAS PREPARED THROUGH THE SILANIZATION OF ACTIVATED MESOPOROUS SBA-15 WITH DIPHENYLDICHLOROSILANE (DPCS) FOLLOWED WITH SILYLATION AND SULFONATION. THE SULFONIC GROUPS ANCHORED TO THE SILICA SURFACE OF THE PORE WALLS ARE RESISTANT TO LEACHING IN ORGANIC AND AQUEOUS SOLUTIONS UNDER MILD CONDITIONS. THIS CATALYST IS FOUND TO BE A RECYCLABLE HETEROGENEOUS CATALYST FOR THE RAPID AND EFFICIENT SYNTHESIS OF VARIOUS 2H-INDAZOLO [2, 1-B] PHTHALAZINE-TRIONES.

MULTICOMPONENT REACTIONS (MCRS) HAVE ATTRACTED MUCH ATTENTION DURING RECENT YEARS. THESE ONEPOT HIGHYIELDING PROCEDURESARE INTERESTING SYNTHETIC METHODS FOR ATTAINING NEW AND USEFULPRODUCTS [1]. ...

MULTICOMPONENT REACTIONS (MCRS) ARE SPECIAL TYPES OF SYNTHETICALLY USEFUL ORGANIC REACTIONS IN WHICH THREE OR MORE DIFFERENT STARTING MATERIALS REACT TO GIVE A FINAL PRODUCT IN A ONEPOT PROCEDURE [1]. ...