1,7-Octadiene process

Details 1,7-Octadiene process 1,7-Octadiene process

1978-12-13

1980-10-21

Demers, Arthur P.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

585503, 585506, 585627, 252431P, 260429R, C07C 1112

Patent

active

042296064

ABSTRACT:
A process for preparing 1,7-octadiene by hydrodimerizing butadiene which comprises reacting the butadiene in the presence of formic acid, or a salt thereof, optionally a solvent and a catalyst comprising palladium complexed with a sterically hindered phosphine, phosphinite or phosphonite and a different ligand selected from phosphine, phosphinite, phosphonite or phosphite. Enhanced catalytic activity is obtained.

REFERENCES:
patent: 3732328 (1973-05-01), Wright
patent: 3823199 (1974-07-01), Wright
patent: 3992456 (1976-11-01), Atkins et al.
patent: 4100194 (1978-06-01), Hobbs et al.
Roffia et al., J. Orgmet Chem. 55 (1973) pp. 405-407.
Gardner et al., Tet. Letters, 1972, #2, pp. 163-164.
Couch et al., J. Chem. Soc. (Dalton) 1974, #12, pp. 1309-1313.
Pittman et al., Chem. Abst. 86 (1977) #54628.

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