- 作者: --
- 作者服務機構: Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, P.O. Box 80203, Saudi Arabia
- 中文摘要: Condensation of acetylacetone with 4-methoxybenzaldehyde, 2,4-dimethoxybenzaldehyde, 3,4-dimethoxybenzaldehyde, 4-nitrobenzaldehyde and 2,4-dinitrobenzaldehyde in water and in the presence of cetyltrimethylammonium bromide (CTABr) as cationic surfactant in dilute sodium hydroxide at room temperature did not afford the expected arylideneacetylacetone but yielded 1H-inden-1-one derivatives 1, while, with piperonaldehyde under the same conditions afforded dipiperonylideneacetone 2. Also 3-acetylthiophene condensed with some aromatic aldehydes under the same conditions gave the expected stereoselective thienylpropenones 4. The structures of the products were identified by IR, NMR, Mass spectral data and elemental analysis.
- 英文摘要: --
- 中文關鍵字: Cetyltrimethylammonium bromide (CTABr); 1H-Inden-1-ones; Thienyl-propenones; Cationic surfactant; Heterogeneous reactions.
- 英文關鍵字: --