6-Chlorochroman-4-one → 5-Chloro-2,3-dihydro-1-benzofuran-3-carboxylic acid

HRID 464740

Reaction equation

HRID 464740 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[O:8][CH2:7][CH2:6][C:5]2=[O:12].[N+]([O-])([O-])=[O:14].[N+]([O-])([O-])=O.[N+]([O-])([O-])=O.[Tl+3]>>[Cl:1][C:2]1[CH:11]=[CH:10][C:9]2[O:8][CH2:7][CH:6]([C:5]([OH:12])=[O:14])[C:4]=2[CH:3]=1

Participants

3

Reactant 2

HCID 952736-Chlorochroman-4-oneHCID 159690Thallic nitrate

Product 1

HCID 202624655-Chloro-2,3-dihydro-1-benzofuran-3-carboxylic acid

Procedure

The title compound was prepared from 6-chloro-4-chromanone (9.0 g, 0.049 mole) and thallium trinitrate (0.074 mole) absorbed onto K10 clay (75 g) by the method of Description 1, as a yellow solid (1.51 g, 16%).

Workup

  1. customabsorbed onto K10 clay (75 g) by the method of Description 1, as a yellow solid (1.51 g, 16%)

Sources & evidence

ORD record
ord-56677aa9eac9416a8dad8eda5d3d6603
Source dataset
uspto-grants-1985_10
Patent number
US04548948

Linked notes

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