PROCESS FOR THE PREPARATION OF SUBSTITUTED HYDROQUINONES

A novel process is disclosed for preparing substituted hydroquinone of the formula: ##SPC1## Wherein R is member selected from the group consisting of lower-alkyl, aryl, and lower alkoxy and m is an integer of 1 to 4; by reductive hydrolysis of the corresponding nitrosophenol. 7 Claims, No Drawings

2

PROCESS FOR THE PREPARATION OF SUBSTITUTED HYDROQUINONES

05/029,279

April 16, 1970

568/747   568/587 568/767

A61K   31/00   (20060101)   C07C   37/00   (20060101)   C07C   37/045   (20060101)   C07D   403/04   (20060101)   C07D   413/04   (20060101)   C07D   417/00   (20060101)   C07D   413/00   (20060101)   C07D   267/00   (20060101)   C07D   267/20   (20060101)   A61K   31/55   (20060101)   C07D   403/00   (20060101)   C07D   417/04   (20060101)  

260/620R   260/621H   260/613D  

5250741 - Process for the preparation of 5-alkoxy-2-nitroso phenols - Owned by Eastman Kodak Company (Rochester, NY) Disclosed is a process for the preparation of 5-alkoxy-2-nitrosophenols by the nitrosation of 3-alkoxyphenols using an alkali metal nitrite and an alkanoic acid wherein the selectivity of the nitrosation is improved. Also disclosed is a 2-step process for the preparation of 5-alkoxy-2-nitrophenols by oxidizing the 5-alkoxy-2-nitrosophenols obtained in accordance with the present invention.