Aryllithium products and processes

Details Aryllithium products and processes Aryllithium products and processes

1996-01-05

1997-05-06

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 102

Patent

active

056267983

ABSTRACT:
An improved process for producing high purity solutions of aryllithium compounds comprising reacting a particulate alkali metal having a particle size in the range of 10 to 300 microns, with an aryl halide in a normally liquid etheral solvent of the formula ROR.sup.1, wherein R and R.sup.1 are selected from the group of alkyl radicals containing from 3 to 6 carbon atoms, in the presence of a Lewis base compound selected from compounds of the formula: R.sup.2 AR.sup.3 (R.sup.4).sub.z and ##STR1## wherein A is selected from oxygen, nitrogen, phosphorus or sulfur; R.sup.2, R.sup.3, and R.sup.4 are selected from alkyl radicals containing from 1 to 6 carbon atoms; R.sup.5 and R.sup.6 are independently selected from hydrogen or alkyl radicals containing one to six carbon atoms; y is an integer from 4 to 6; but when A is oxygen or sulfur, z is zero; and when A is nitrogen or phosphorus, z is one, and provided there is a mole ratio of ether to aryl halide of at least 1.3 to 1 and a mole ratio of Lewis base to aryl halide of from 0.01 to 0.50; and products of the process.

REFERENCES:
patent: 3197516 (1965-07-01), Esmay et al.
patent: 3446860 (1969-05-01), Beumel
patent: 3452112 (1969-06-01), Kamienski et al.
patent: 3534113 (1970-10-01), Eastham et al.
patent: 3632658 (1972-01-01), Halasa
patent: 4354982 (1982-10-01), Bogdanovic
patent: 5211888 (1993-05-01), Morrison et al.
patent: 5340507 (1994-08-01), Morrison et al.
patent: 5523447 (1996-06-01), Kamienski et al.
Gilman, Haubein and Hartzfeld, J. Org. Chem 19, 1034 (1954) The Cleavage of Some Ethers by Organolithium Compounds.
Gelman and Gaj, J. Org. Chem 22, 1165 (1957), Preparaion and Stability of Someorganolithium Compounds in Tetrahydrofuran.
Holding and Pletcher, Electrochim Acta (34)1529, (1989), A Chemical Approach to the Study of Films on Lithium in Organic Electrolytes for Batteries.

Affiliated with

Also associated with

Rating

Aryllithium products and processes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aryllithium products and processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aryllithium products and processes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2130187