Acetone → 1,2,4,5-Benzenetetrol

Participants

Role	Name	HCID	Charge
Reactant	Acetone	HCID 180	—
Reactant	Hydrochloric Acid	HCID 313	—
Reactant	2,5-Dihydroxy-1,4-benzoquinone	HCID 69213	—
Reactant	2,2,6,6-Tetramethylbenzo[1,2-d:4,5-d']bis([1,3]dioxole)	HCID 10922085	—
Catalyst	Iron	HCID 23925	—
Solvent	Water	HCID 962	—
Product	1,2,4,5-Benzenetetrol	HCID 69464	—

Reaction Steps

2,5-Dihydroxy-1,4-benzoquinone (10.00 g, 71.43 mmol) was suspended in water (200 ml, distilled) followed by HCl (6 mL, 142-86 mmol, conc.). Iron (4.00 g, 71.43 mmol, powder) was added and the mixture was stirred 30 minutes at room temperature. The solution was filtered and the solution evaporated to dryness. The product was isolated as a grey brown powder containing some iron complexes. Yield 14.80 g. The product is used as such in the reaction with acetone and P2O5 (Example 5) with no negative effects.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US05827501
Source dataset	uspto-grants-1998_10
ORD ID	ord-830556b40f724d5b9eba96c160db5976
Source note	uspto-grants-1998_10