Accession Number : AD0163772
Title : Substituted Bithiophenes.
Descriptive Note : Patent,
Corporate Author : OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C
Personal Author(s) : Gisser,Henry ; Portnoy,Seymour
Report Date : 15 FEB 1972
Pagination or Media Count : 2
Abstract : The patent describes a new heat-stable compound, 5,5'-diheptafluobutyryl-2,2'-bithiophene, and methods for its preparation which involves the use of ethyl bromide in an uncatalyzed Grignard coupling reaction, as well as methods for preparing other related bithiophenes having at least one substituent in each thiophene ring. Lubricating oils and hydraulic fluids containing this compound as a friction reducing agent are also described.
Descriptors : (*PATENTS, THIOPHENES), (*THIOPHENES, SYNTHESIS(CHEMISTRY)), (*LUBRICANTS, HEAT RESISTANT MATERIALS), (*HYDRAULIC FLUIDS, HEAT RESISTANT MATERIALS), GRIGNARD REACTIONS, ORGANIC SULFUR COMPOUNDS, HETEROCYCLIC COMPOUNDS
Subject Categories : ORGANIC CHEMISTRY
LUBRICANTS AND HYDRAULIC FLUIDS
Distribution Statement : APPROVED FOR PUBLIC RELEASE