ONE-POT SYNTHESIS OF ISOBENZOFURAN-1(3H)-ONES USING SULFURIC ACID IMMOBILIZED ON SILICA UNDER SOLVENT-FREE CONDITIONS AND SURVEY OF THIRD-ORDER NONLINEAR OPTICAL PROPERTIES
An efficient and practical one-potsynthesis of 3-substituted isoindolin-1-ones and isobenzofuran-1(3H)-ones has been developed under solvent free-conditions using non-toxic and cheap phenylboronic acid as excellent catalyst. This strategy involves the sequential two-step Mannich/lactamization cascade reaction of inexpensive 2-formylbenzoic acid with primary amines and a wide variety of ketones, and
1-Methyl-3-(propyl-3-sulfonic acid)imidazolium triflate supported on magnetic nanoparticles: an efficient and reusable catalyst for synthesis of mono- and bis-isobenzofuran-1(3H)-ones under solvent-free conditions
作者:Forouz Rastegari、Iraj Mohammadpoor-Baltork、Ahmad R. Khosropour、Shahram Tangestaninejad、Valiollah Mirkhani、Majid Moghadam
DOI:10.1039/c4ra14112a
日期:——
An efficient procedure for the synthesis of isobenzofuran-1(3H)-one derivatives in the presence of [HSO3PMIM]OTf–SiO2@MNPs as a highly recyclable catalyst under solvent-free thermal conditions and MW irradiation is reported.
ZrOCl2·8H2O catalyzed solvent-free synthesis of isobenzofuran-1(3H)-ones
作者:Jaiprakash N. Sangshetti、Siddique Akber M.K. Ansari、Devanand B. Shinde
DOI:10.1016/j.cclet.2010.09.026
日期:2011.2
ZrOCl2·8H2O catalyzed environmentally benign synthesis of isobenzofuran-1(3H)-ones are described. ZrOCl2·8H2O appeared to be an excellent catalyst for the condensation and reactions. Reaction of phthalaldehydicacid (2-carboxybenzaldehyde) with methylaryl and cyclic ketones was initiated by condensation and occurred in one step providing excellent yields (90–98%).