Title of article
Silica-supported Sodium Hydrogen Sulfate and Amberlyst-15 : Two Efficient Heterogeneous Catalysts for Single-step Synthesis of 4(3H)-Quinazolinones from Anthranilic Acid, Ortho Esters, and Amines under Solvent Free Conditions
Author/Authors
Das، Biswanath نويسنده , , Banerjee، Joydeep نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
-95
From page
96
To page
0
Abstract
The single step synthesis of 4(3H)-quinazolinones has been carried out efficiently by coupling of the three components, anthranilic acid, ortho esters, and amines in the presence of silica-supported sodium hydrogen sulfate (NaHSO4·SiO2) or Amberlyst-15 as a heterogeneous catalyst. The reaction occurred within a few minutes under solvent free conditions to afford the products in excellent yields. One of the catalysts, Amberlyst-15 can be recovered and recycled.
Keywords
Application-production research , prediction , Surface finish , Power requirement , Genetic-fuzzy system , grinding
Journal title
CHEMISTRY LETTERS
Serial Year
2004
Journal title
CHEMISTRY LETTERS
Record number
28643
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