Process for the telomerization or oligomerization of acyclic con

Details Process for the telomerization or oligomerization of acyclic con Process for the telomerization or oligomerization of acyclic con

1977-07-26

1979-03-27

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

260677R, 252411R, 252416, 252431P, C07L 4706, C07L 4110, C07L 1100

Patent

active

041467388

ABSTRACT:
Acyclic conjugated diolefins of 4-6 carbon atoms can be telomerized or oligomerized by themselves or with H-acidic compounds in the presence of an activated palladium (triarylphosphine) catalyst prepared by oxidatative removal of 1-3.5 molar equivalents of triphenylphosphine from palladium tetrakis(triphenylphosphine). The thus-obtained, activated palladium complex is recovered, after termination of the telomerization and/or oligomerization, by adding 2-6 molar equivalents of triphenylphosphine to the reaction product, distilling the telomer or oligomer therefrom and recovering the thus-regenerated palladium tetrakis(triphenylphosphine) from the distillation residue.

REFERENCES:
patent: 3530187 (1970-09-01), Shryne
patent: 3670032 (1972-06-01), Romanelli
patent: 3691249 (1972-09-01), De Young
patent: 3769352 (1973-10-01), Romanelli
patent: 3925497 (1925-12-01), Josey et al.
patent: 3992456 (1976-11-01), Atkins et al.
patent: 4021383 (1977-05-01), Cuscurida et al.
Takahashi et al. I, Bull. Chem. Soc, Japan, 41, pp. 454-460 (1968).
Takahashi et al. II, Tetrahedron Letters, No. 26, pp. 2451-2453, 1967.

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