Accession Number:

ADA210368

Title:

Cubane Derivatives for Propellant Applicationsxb

Descriptive Note:

Final rept. 1 Jun 1987-31 May 198

Corporate Author:

FLUOROCHEM INC AZUSA CA

Personal Author(s):

• Archibald, T. G.
• Preston, S. B.
• Harding, S. A.
• Nguyen, N. V.
• Bonsu, F. O.

Report Date:

1989-07-03

Pagination or Media Count:

91.0

Abstract:

Work during this program emphasized larger scale preparations of cubane-1,4-dicarboxylic acid and process improvements. In the first step, the reaction solvent was changed to toluene to shorten the reaction time and to avoid the use of the carcinogenic solvent, benzene. In the second step, p- dioxane could not be replaced by another solvent, but only molar amounts were needed. This material was destroyed during the reaction, avoiding disposal problem. In step three, the dehydrohalogenation was improved by using inexpensive sodium hydroxide and ethanol instead of potassium t-butoxide in tetrahydrofuran.

Descriptors:

• *PROPELLANTS
• *ORGANIC CHEMISTRY
• HYDRAZINES
• REACTION TIME
• RESPONSE
• SCALE
• SOLVENTS
• DEHYDROGENATION
• CARCINOGENS
• DISPOSAL
• HALOGENATION
• FURANS
• HYDROXYL RADICALS
• CARBOXYLIC ACIDS
• TOLUENES
• SODIUM HYDROXIDE
• BENZENE
• PREPARATION

Subject Categories:

• Organic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE