引用本文:
Davood Azarifar, Elahe Nadimi, Mohammd Mehdi Ghanbari. Silica-supported l,3-dichloro-5,5-dimethylhydantoin (DCH) as a useful reagent for microwave-assisted aromatization of 1,3,5-trisubstituted pyrazolines under solvent-free conditions[J]. Chinese Chemical Letters,
2011, 22(4): 447-450.
doi:
10.1016/j.cclet.2010.10.023
Citation: Davood Azarifar, Elahe Nadimi, Mohammd Mehdi Ghanbari. Silica-supported l,3-dichloro-5,5-dimethylhydantoin (DCH) as a useful reagent for microwave-assisted aromatization of 1,3,5-trisubstituted pyrazolines under solvent-free conditions[J]. Chinese Chemical Letters, 2011, 22(4): 447-450. doi: 10.1016/j.cclet.2010.10.023
Citation: Davood Azarifar, Elahe Nadimi, Mohammd Mehdi Ghanbari. Silica-supported l,3-dichloro-5,5-dimethylhydantoin (DCH) as a useful reagent for microwave-assisted aromatization of 1,3,5-trisubstituted pyrazolines under solvent-free conditions[J]. Chinese Chemical Letters, 2011, 22(4): 447-450. doi: 10.1016/j.cclet.2010.10.023
Silica-supported l,3-dichloro-5,5-dimethylhydantoin (DCH) as a useful reagent for microwave-assisted aromatization of 1,3,5-trisubstituted pyrazolines under solvent-free conditions
摘要:
1,3,5-Trisubstituted pyrazolines are rapidly and conveniently oxidized to their corresponding pyrazoles by l,3-dichloro-5,5-dimethylhydantoin (DCH) in solution and solvent-free conditions under microwave irradiation. The presence of silica gel as a supporting agent is shown to be effective in reducing the reaction times and increasing the yields.
English
Silica-supported l,3-dichloro-5,5-dimethylhydantoin (DCH) as a useful reagent for microwave-assisted aromatization of 1,3,5-trisubstituted pyrazolines under solvent-free conditions
Abstract:
1,3,5-Trisubstituted pyrazolines are rapidly and conveniently oxidized to their corresponding pyrazoles by l,3-dichloro-5,5-dimethylhydantoin (DCH) in solution and solvent-free conditions under microwave irradiation. The presence of silica gel as a supporting agent is shown to be effective in reducing the reaction times and increasing the yields.
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