Triethyl phosphite → 7,8-dihydro-6,6-dimethyl-7,8-epoxy-6H-pyrano[2,3-f]benz-2,1,3-oxadiazole

HRID 1109167Notes

Reaction equation

HRID 1109167 reaction equation
[CH3:1][C:2]1([CH3:17])[O:15][C:6]2=[CH:7][C:8]3[C:9]([CH:14]=[C:5]2[CH:4]2[O:16][CH:3]12)=[N:10][O:11][N+:12]=3[O-].P(OCC)(OCC)OCC>C1C=CC=CC=1>[CH3:1][C:2]1([CH3:17])[O:15][C:6]2=[CH:7][C:8]3[C:9]([CH:14]=[C:5]2[CH:4]2[O:16][CH:3]12)=[N:10][O:11][N:12]=3

Participants

4

Reactant 2

HCID 31215Triethyl phosphiteHCID 110426527,8 dihydro-6,6-dimethyl-7,8-epoxy-6H-pyrano[2,3-f]benz-2,1,3-oxadiazole-3-oxide

Product 1

HCID 98373347,8-dihydro-6,6-dimethyl-7,8-epoxy-6H-pyrano[2,3-f]benz-2,1,3-oxadiazole

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

1.00 g (4.27 mmol) of 7,8-dihydro-6,6-dimethyl-7,8-epoxy-6H-pyrano[2,3-f]benz-2,1,3-oxadiazole-3-oxide (compound [G]) and 6 ml of benzene were stirred at 60° C., while 0.80 ml (4.70 mmol) of triethyl phosphite was added thereto dropwise within 15 minutes. Next, the obtained mixture was stirred for three hours.

Workup

  1. additionwas added

Sources & evidence

ORD record
ord-6f00b738761747b78f3de0d1fce19ee3
Source dataset
uspto-grants-1994_06
Patent number
US05319089

Reaction notes

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