HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 545629Generated: October 31, 2026
Potassium Carbonate → 3-(4-methoxybenzyl)-1-benzyl-6-chloro-3,4-dihydroquinazolin-2(1H)-one
https://huagongshe.com/reaction/545629
Participants
| Role | Name | HCID | Charge |
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| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | Benzyl isocyanate | HCID 76639 | — |
| Reactant | HCID 66158876 | HCID 66158876 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 3-(4-methoxybenzyl)-1-benzyl-6-chloro-3,4-dihydroquinazolin-2(1H)-one | HCID 67188968 | — |
Reaction Steps
To a stirring mixture of N-(4-methoxybenzyl)(2-bromo-5-chlorophenyl)methanamine (0.94 g, 2.77 mmol), Pd(PPh3)4 (0.32 g, 0.277 mmol), and K2CO3 (0.77 g, 5.55 mmol) was added DMF (5.0 mL), followed by slow addition of benzyl isocyanate (0.38 mL, 3.05 mmol) at 0° C. The mixture was heated at 120° C. for 4 hrs. The resulting mixture was concentrated and passed through a short path of silica gel and eluted with DCM until the product eluted. The combined organic layers were concentrated to give the product 3-(4-methoxybenzyl)-1-benzyl-6-chloro-3,4-dihydroquinazolin-2(1H)-one as a pale yellow foam. MS m/e 340 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07935709B2 |
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| Source dataset | uspto-grants-2011_05 |
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| ORD ID | ord-3745554f7bb44bcd8985aa7ec01b93b3 |
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| Source note | uspto-grants-2011_05 |
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