Sulfamic acid: An efficient, cost-effective and green catalyst for crossed-aldol condensation of ketones with aromatic aldehydes under solvent-free
โ Scribed by Amin Rostami; Firoz Ahmad-Jangi
- Book ID
- 104010596
- Publisher
- Chinese Electronic Periodical Services
- Year
- 2011
- Tongue
- English
- Weight
- 878 KB
- Volume
- 22
- Category
- Article
- ISSN
- 1001-8417
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โฆ Synopsis
Aromatic aldehydes undergo crossed-aldol condensation with ketones in the presence of catalytic amount of sulfamic acid (SA) to afford the corresponding a, b-unsaturated aldol products under solvent-free conditions in good to high yields at 45-80 8C.
๐ SIMILAR VOLUMES
Aromatic aldehydes undergo cross-aldol condensation with ketones in the presence of carbon-based solid acid under solvent-free conditions to afford the corresponding ฮฑ,ฮฒ-unsaturated aldol products in excellent yields. The catalyst is reusable several times without any decrease in the yield of the re
## Abstract It is described that sulfamic acid can be utilized as an effective and green catalyst for the synthesis of 1,5โbenzodiazepines in high yields from the solventโfree condensation of oโphenylenediamine (**1**) and ketones (**2**). ยฉ 2007 Wiley Periodicals, Inc. Heteroatom Chem 18:354โ358,