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CELLULOSE SULFURIC ACID AS A NEW, BIODEGRADABLE AND ENVIRONMENTALLY FRIENDLY BIO-POLYMER FOR SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(3-METHYL-1-PHENYL-1H-PYRAZOL-5-OLS)
| Content Provider | Open Access Library (OALib) |
|---|---|
| Author | BAGHIZADEH AMIN MOSADDEGH ELAHEH HASSANKHANI ASADOLLAH |
| Abstract | the one-pot multicomponent synthesis of 4,4'-arylmethylene-bis(3-methyl-1-phenyl-1h-pyrazol-5-ol) was performed effectively by tandem knoevenagel-michael reaction of aryl aldehydes and 5-methyl-2-phenyl-2,4-dihydro-3h-pyrazol-3-one in the presence of a catalytic amount of cellulose sulfuric acid as an environmentally friendly biopolymer-based solid acid catalyst at reflux conditions. all of obtained compounds were characterized by ft ir, 1h and 13c nmr. this new methodology is of interest due to minimizing the cost operational hazards and environmental pollution, high yields, short reaction time, cost effective and simple work-up. |
| ISSN | 07179707 |
| Journal | Journal of the Chilean Chemical Society |
| DOI | 10.4067/S0717-97072010000400001 |
| Publisher | Scientific Electronic Library Online |
| Publisher Date | 2010-01-01 |
| Access Restriction | Open |
| Subject Keyword | Biopolymer Environmentally friendly. 4,4'-(arylmethylene)bis(3-methyl-1-phenyl-1h-pyrazol-5-ols) Cellulose sulfuric acid 5-methyl-2-phenyl-2,4-dihydro-3h-pyrazol-3-one |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry |
