Organo-lithium compounds and a process for their preparation

Details Organo-lithium compounds and a process for their preparation Organo-lithium compounds and a process for their preparation

1976-06-07

1978-01-10

Hamrock, William F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260668C, 260879, 260880B, 526173, C08F 448

Patent

active

040679179

ABSTRACT:
Organo-lithium compounds of the formula: ##STR1## wherein R is an alkyl group of up to 5 carbon atoms, R' is either hydrogen or an alkyl group of up to 5 carbon atoms and n is an integer from 2 to 10. These bifunctional organo-lithium compounds are prepared without the use of any polar or complexing agent and are useful as polymerization initiators for the production of block copolymers.

REFERENCES:
patent: 3090819 (1963-05-01), Foster
patent: 3237333 (1966-11-01), Zelinski
patent: 3392202 (1968-07-01), Pritchett
patent: 3450795 (1969-06-01), Langer
patent: 3668263 (1972-06-01), Morrison et al.
patent: 3725368 (1973-04-01), Morrison et al.
patent: 3725488 (1973-04-01), Hsieh
patent: 3734973 (1973-05-01), Farrar
patent: 3776964 (1973-12-01), Morrison et al.

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