## Abstract For Abstract see ChemInform Abstract in Full Text.
MICROWAVE IRRADIATION SYNTHESIS OF 2-SUBSTITUTED BENZIMIDAZOLES USING PPA AS A CATALYST UNDER SOLVENT-FREE CONDITIONS
β Scribed by Bai, Yinjuan; Lu, Jun; Yang, Bingqin
- Book ID
- 115494233
- Publisher
- Taylor and Francis Group
- Year
- 2002
- Tongue
- English
- Weight
- 164 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0039-7911
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π SIMILAR VOLUMES
A wide variety of 2-substituted benzimidazoles and bis-benzimidazoles were synthesized in high yields by PEG-mediated catalyst-free synthesis under solvent-less conditions. The products were directly recrystallized from hot methanol. The reaction occurred giving excellent yields with low as well as
## Abstract Silicaβsupported polyphosphoric acid (PPAβSiO~2~) catalyzed efficiently the reaction of anthranilamide with aryl aldehydes or ketones under solventβfree conditions to afford the corresponding 1,2,3,4βtetrahydroβ4βquinazolinone derivatives. This work consistently has the advantages of ex