Acetic Anhydride → 10-Acetoxy-5,5-dimethyl-8-(2-eicosyl)-5H-[1]benzopyrano[3,4-d]pyridine

HRID 126803Notes

Reaction equation

HRID 126803 reaction equation
[CH3:1][C:2]1([CH3:37])[C:32]2=[CH:33][CH:34]=[N:35][CH:36]=[C:31]2[C:5]2[C:6]([OH:30])=[CH:7][C:8]([CH:10]([CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH3:29])[CH3:11])=[CH:9][C:4]=2[O:3]1.[C:38](OC(=O)C)(=[O:40])[CH3:39]>N1C=CC=CC=1>[C:38]([O:30][C:6]1[C:5]2[C:31]3[C:32]([C:2]([CH3:1])([CH3:37])[O:3][C:4]=2[CH:9]=[C:8]([CH:10]([CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH3:29])[CH3:11])[CH:7]=1)=[CH:33][CH:34]=[N:35][CH:36]=3)(=[O:40])[CH3:39]

Participants

4

Reactant 2

HCID 7918Acetic AnhydrideHCID 202878765,5-dimethyl-10-hydroxy-8-(2-eicosyl)-5H-[1]benzopyrano[3,4-d]pyridine

Product 1

HCID 2028790810-Acetoxy-5,5-dimethyl-8-(2-eicosyl)-5H-[1]benzopyrano[3,4-d]pyridine

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

10-Acetoxy-5,5-dimethyl-8-(2-eicosyl)-5H-[1]benzopyrano[3,4-d]pyridine is prepared by reacting 5,5-dimethyl-10-hydroxy-8-(2-eicosyl)-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-a6560ad6a5e64d49a3dc35a1b9ee800b
Source dataset
uspto-grants-1981_03
Patent number
US04254116

Reaction notes

Loading…