Potassium Carbonate → HCID 22030824, compound

HRID 454094Notes

Reaction equation

[CH2:1]([O:8][C:9]1[CH:18]=[C:17]2[C:12]([C:13](Cl)=[N:14][CH:15]=[N:16]2)=[CH:11][C:10]=1[O:20][CH3:21])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH:22][C:23]1[CH:24]=[C:25]2[C:29](=[CH:30][CH:31]=1)[NH:28][CH:27]=[CH:26]2.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[CH2:1]([O:8][C:9]1[CH:18]=[C:17]2[C:12]([C:13]([O:22][C:23]3[CH:24]=[C:25]4[C:29](=[CH:30][CH:31]=3)[NH:28][CH:27]=[CH:26]4)=[N:14][CH:15]=[N:16]2)=[CH:11][C:10]=1[O:20][CH3:21])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 95 °C

Procedure

A mixture of 7-benzyloxy-4-chloro-6-methoxyquinazoline (3 g, 10 mmol), (prepared as described for the starting material in Example 1), 5-hydroxyindole (1.46 g, 11 mmol) in DMF (30 ml) containing potassium carbonate (2.75 g, 20 mmol) was heated at 95° C. for 2 hours. After cooling the mixture was poured onto water (100 ml). The precipitate was filtered, washed with water and dried under vacuum at 50° C. over phosphorus pentoxide. The solid was triturated with ether, filtered, washed with ether and dried under vacuum to give 7-benzyloxy-4-(indol-5-yloxy)-6-methoxyquinazoline (3.5 g, 88%).

Workup

custom(prepared
temperatureAfter cooling the mixture
additionwas poured onto water (100 ml)
filtrationThe precipitate was filtered
washwashed with water
dry with materialdried under vacuum at 50° C. over phosphorus pentoxide
customThe solid was triturated with ether
filtrationfiltered
washwashed with ether
customdried under vacuum

Sources & evidence

ORD record: ord-ebb56c90399f4e12a248dfdd078a20a4
Source dataset: uspto-grants-2013_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08492560B2

Reaction notes

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