Acetic Anhydride → 10-Acetoxy-5,5-dimethyl-8-n-pentyl-5H-[1]benzopyrano[3,4-d]pyridine

HRID 126799Notes

Reaction equation

HRID 126799 reaction equation
[CH3:1][C:2]1([CH3:22])[C:17]2=[CH:18][CH:19]=[N:20][CH:21]=[C:16]2[C:5]2[C:6]([OH:15])=[CH:7][C:8]([CH2:10][CH2:11][CH2:12][CH2:13][CH3:14])=[CH:9][C:4]=2[O:3]1.[C:23](OC(=O)C)(=[O:25])[CH3:24]>N1C=CC=CC=1>[C:23]([O:15][C:6]1[C:5]2[C:16]3[C:17]([C:2]([CH3:1])([CH3:22])[O:3][C:4]=2[CH:9]=[C:8]([CH2:10][CH2:11][CH2:12][CH2:13][CH3:14])[CH:7]=1)=[CH:18][CH:19]=[N:20][CH:21]=3)(=[O:25])[CH3:24]

Participants

4

Reactant 2

HCID 7918Acetic AnhydrideHCID 202878825,5-dimethyl-10-hydroxy-8-(1-pentyl)-5H-[1]benzopyrano[3,4-d]pyridine

Product 1

HCID 2028785110-Acetoxy-5,5-dimethyl-8-n-pentyl-5H-[1]benzopyrano[3,4-d]pyridine

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

10-Acetoxy-5,5-dimethyl-8-n-pentyl-5H-[1]benzopyrano[3,4-d]pyridine is prepared by reacting 5,5-dimethyl-10-hydroxy-8-n-pentyl-5H-[1]benzopyrano[3,4-d]pyridine and acetic anhydride in the presence of pyridine according to the method of Example 12.

Sources & evidence

ORD record
ord-23f8c9f316694c87b40920386c63c538
Source dataset
uspto-grants-1981_03
Patent number
US04254116

Reaction notes

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