Convergent Synthesis of Polysubstituted Furans via Catalytic Phosphine Mediated Multicomponent Reactions
Abstract
:1. Introduction
2. Results and Discussion
3. Experimental Section
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sample Availability: Samples of the compounds 3 are not available from the authors. |
Entry | Silane (mmol) | Solvent | Temp (°C) | 3 (%) b |
---|---|---|---|---|
1 | Ph2SiH2 (0.6) | THF | rt | 11 |
2 | Ph2SiH2 (0.6) | THF | 60 | 12 |
3 | PhSiH3 (0.6) | Toluene | rt | trace |
4 | PhSiH3 (0.6) | Toluene | 110 | 74 |
5 | Ph2SiH2 (0.6) | Toluene | 110 | 42 |
6 | (MeO)3SiH (0.6) | Toluene | 110 | 33 |
7 | PMHS (0.034) | Toluene | 110 | 26 |
8 | PMHS (0.106) | Toluene | 110 | 30 |
9 | Ph3SiH (1.2) | Toluene | 110 | 18 |
10 | SiHCl3 (0.6) | Toluene | rt | trace |
11 | PhSiH3 (0.25) | Toluene | 110 | 65 |
12 | PhSiH3 (0.4) | Toluene | 110 | 84 |
13 | PhSiH3 (0.75) | Toluene | 110 | 49 |
14 | PhSiH3 (0.4) | Toluene | 80 | 56 |
15 | PhSiH3 (0.4) | Dioxane | 110 | 54 |
16 | PhSiH3 (0.4) | Xylene | 110 | 60 |
17 | PhSiH3 (0.4) | DMF | 110 | 11 |
18 | PhSiH3 (0.4) | CH3CN | 80 | trace |
19 c | PhSiH3 (0.4) | Toluene | 110 | 48 |
Entry | EWG in 1 | R in 2 or 2′ | 3 (%) b |
---|---|---|---|
1 | CO2tBu (1a) | 3-ClC6H4 (2a) | 3aa, 84 |
2 | CO2tBu (1a) | 4-ClC6H4 (2b) | 3ab, 75 |
3 | CO2tBu (1a) | 2-ClC6H4 (2c) | 3ac, 33 |
4 | CO2tBu (1a) | Ph(2d) | 3ad, 70 |
5 | CO2tBu (1a) | 4-MeC6H4 (2e) | 3ae, 90 |
6 | CO2tBu (1a) | 4-NO2C6H4 (2f) | 3af, 37 |
7 | CO2tBu (1a) | 2-thienyl (2g) | 3ag, 46 |
8 | CO2Me (1b) | 4-ClC6H4 (2b) | 3bb, 81 |
9 | CO2Me (1b) | 4-MeC6H4 (2e) | 3be, 84 |
10 | CO2Et (1c) | 4-ClC6H4 (2b) | 3cb, 71 |
11 | CO2Et (1c) | 4-MeC6H4 (2e) | 3ce, 84 |
12 | CO2nBu (1d) | 4-ClC6H4 (2b) | 3db, 85 |
13 | CO2nBu (1d) | 4-MeC6H4 (2e) | 3de, 83 |
14 | CO2Bn (1e) | Ph (2d) | 3ed, 87 |
15 | CN (1f) | 4-ClC6H4 (2b) | 3fb, 38 |
16 | CN (1f) | Ph (2d) | 3fd, 57 |
17 | CN (1f) | 4-MeC6H4 (2e) | 3fe, 44 |
18 | CO2tBu (1a) | Me (2′a) | 3aa’, 27 |
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Fan, X.; Chen, R.; Han, J.; He, Z. Convergent Synthesis of Polysubstituted Furans via Catalytic Phosphine Mediated Multicomponent Reactions. Molecules 2019, 24, 4595. https://doi.org/10.3390/molecules24244595
Fan X, Chen R, Han J, He Z. Convergent Synthesis of Polysubstituted Furans via Catalytic Phosphine Mediated Multicomponent Reactions. Molecules. 2019; 24(24):4595. https://doi.org/10.3390/molecules24244595
Chicago/Turabian StyleFan, Xia, Rongshun Chen, Jie Han, and Zhengjie He. 2019. "Convergent Synthesis of Polysubstituted Furans via Catalytic Phosphine Mediated Multicomponent Reactions" Molecules 24, no. 24: 4595. https://doi.org/10.3390/molecules24244595