Chromanone → HCID 4680943, compound

HRID 1106551Notes

Reaction equation

HRID 1106551 reaction equation
[O:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4](=[O:11])[CH2:3][CH2:2]1.C(O[CH:15](OCC)[N:16]([CH3:18])[CH3:17])C>>[CH3:15][N:16]([CH:18]=[C:3]1[C:4](=[O:11])[C:5]2[C:10](=[CH:9][CH:8]=[CH:7][CH:6]=2)[O:1][CH2:2]1)[CH3:17]

Participants

3

Reactant 2

HCID 68110ChromanoneHCID 70913Dimethylformamide diethylacetal

Product 1

HCID 4680943HCID 4680943, compound

Procedure

The 3-(dimethylaminomethylene)-chroman-4-one starting material was prepared from 4-chromanone (5.0 g, 33.7 mmol) and N,N-dimethylformamide diethyl acetal (15 ml, 87.5 mmol) to give the desired product as orange crystals (4.3 g) m.p. 135.8°. MS (ES+) 204 (100%).

Sources & evidence

ORD record
ord-fede2bf9c5b24ab28d8e359f4b3fc77d
Source dataset
uspto-grants-2000_05
Patent number
US06057329

Reaction notes

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