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http://nopr.niscpr.res.in/handle/123456789/6229| Title: | The reaction of aromatic aldehydes and 5,5-dimethyl-1,3-cyclohexanedione under solvent-free grinding conditions |
| Authors: | Jin, Tong-Shou Wang, Ai-Qing Ma, Hui Zhang, Jian-She Li, Tong-Shuang |
| Keywords: | aromatic aldehydes;5,5-dimethyl-1,3-cyclohexanedione;2,2′-arylmethylene bis(3-hydroxy-5,5-dimethyl-2-cyclohexen-1-one);1, 8-dioxooctahydroxanthene |
| Issue Date: | Feb-2006 |
| Publisher: | CSIR |
| IPC Code: | Int.Cl.7 C 07 D |
| Abstract: | The reaction of aromatic aldehyde 1 and 5,5-dimethyl-1,3-cyclohexanedione 2 under solvent-free and solid state conditions has been catalyzed by KF/Al2O3 or silica sulfate and yields two products: 2,2′-arylmethylene bis(3-hydroxy-5,5- dimethyl-2-cyclohexen-1-one) 3 and 1, 8-dioxooctahydroxanthene 4 and their derivatives. In addition, 2-amino-4-aryl-3-cyano-7,7-dimethyl-5-oxo-4H-5,6,7,8-tetrahydrobenzo[b]pyran 5 is also obtained in this condition. This method provides several advantages such as good yield (61-93%), simple work-up procedure and is environment friendly. |
| Page(s): | 470-474 |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Appears in Collections: | IJC-B Vol.45B(02) [February 2006] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 45B(2) 470-474.pdf | 218.09 kB | Adobe PDF | View/Open |
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