Polymetalated 1-alkyne compositions

Details Polymetalated 1-alkyne compositions Polymetalated 1-alkyne compositions

1990-09-21

1992-01-14

Prescott, Arthur C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

502152, 502157, C07F 102

Patent

active

050808354

ABSTRACT:
Hydrocarbon soluble polymetalated 1-alkene compositions are described, and these compositions may be characterized by the formula ##STR1## wherein R is hydrogen, a hydrocarbyl group or R.sup.1 M, M is an alkali metal, R.sup.1 is a divalent oligomeric hydrocarbyl group comprising moieties derived from a conjugated diene, and wherein the total number moieties derived from a conjugated diene in all of the R.sup.1 groups in Formula I is from about 2 to about 30. Preferably, the alkali metal is lithium.
Hydrocarbon soluble polymetalated 1-alkene catalysts for anionic polymerizations are also described which comprise the reaction product of a 1-alkyne, an organometallic compount R.degree.M, and a 1,3-conjugated diene wherein R.degree. is a hydrocarbyl group, M is an alkali metal, the mole ratio of conjugated diene to 1-alkyne is at least about 2:1, and the reaction is conducted at a temperature of at least about 70.degree. C.

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