HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1639315Generated: November 2, 2026
Sodium Hydroxide → Sodium 2-[3-(4-bromo-2-fluorobenzyl)-7-chloro-1,2,3,4-tetrahydro-2,4-dioxoquinazolin-1-yl]acetate
https://huagongshe.com/reaction/1639315
Participants
| Role | Name | HCID | Charge |
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| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Ethyl {3-[(4-bromo-2-fluorophenyl)methyl]-7-chloro-2,4-dioxo-3,4-dihydroquinazolin-1(2H)-yl}acetate | HCID 11431340 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | Sodium 2-[3-(4-bromo-2-fluorobenzyl)-7-chloro-1,2,3,4-tetrahydro-2,4-dioxoquinazolin-1-yl]acetate | HCID 23698320 | — |
Reaction Steps
A solution of ethyl 2-[3-(4-bromo-2-fluorobenzyl)-7-chloro-1,2,3,4-tetrahydro-2,4-dioxoquinazolin-1-yl]acetate (69 g) and 1N aqueous sodium hydroxide (191 ml) in ethanol (350 ml) was stirred at 60° C. for 3 hours. After cooling to 0° C., the precipitates were collected by filtration, washed with water, and dried over phosphorus pentoxide. Recrystallization from water (360 ml) gave sodium 2-[3-(4-bromo-2-fluorobenzyl)-7-chloro-1,2,3,4-tetrahydro-2,4-dioxoquinazolin-1-yl]acetate (39.2 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04883800 |
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| Source dataset | uspto-grants-1989_11 |
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| ORD ID | ord-59051adc5a684dcc97dfc48bda91d20a |
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| Source note | uspto-grants-1989_11 |
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