H-Beta Assisted Synthesis of 1-Phenyl Naphthoic Acids from -Arylidine Β-Benzoyl Propionic Acid Their Comparative Study
Abstract
On impending investigation, zeolites are used dehydrating agent in cyclization reaction. Zeolite H-Beta acts as a non-hygroscopic, non-volatile, odorless, inexpensive, readily available, reusable and an effective green catalyst. Synthesis of -arylidene β-benzoyl propionic acid to 1-Phenyl Naphthoic acid via concentrated sulphuric acid, Poly phosphoric acid (PPA) and sulphamic acid (SA) are used as numerous cyclization catalysts. The zeolite H-beta is activated under autoclave moist heating at 1210C at 15 lbs atm pressure. The reaction concoction of 1mmol of -arylidene β-benzoyl propionic acid, 0.5 mmol activated H-Beta and 10 mmol industrial solvent are refluxed under gradual heating at optimize time. The reactions as above said are in attendance under microwave irradiation and followed by work-up process. The obtained blended mass are cool, dissolve in ether in subsequent fraction, collect organic layer and solidify in sodium sulphate to obtained 1-Phenyl Naphthoic acid and their subordinates. All the products are identified and characterized by FTIR 1HNMR, Mass spectroscopy.
